The Unfinished Economy
We Have a Marketplace for Used Shoes. Why Not Used Startups?
We resell shoes, cars, phones, furniture and almost everything else we stop using. Meanwhile, digital projects can end with their code, domains, designs and infrastructure simply sitting untouched.
Used Shoe
Normal.
Used Startup?
Somehow, a strange question.
Someone buys a pair of shoes.
They wear them.
Eventually, they don’t want them anymore.
The shoes don’t suddenly cease to exist.
They can be photographed, described, priced and placed in front of someone who wants them next. We have built enormous marketplaces around this basic idea.
And secondhand isn’t some tiny corner of commerce anymore. The idea that something can have a second owner is completely normal.
Except, strangely, when it comes to many of the things we build online.
A founder can spend months creating an app, SaaS product, AI tool or digital business. Then they stop. The project might still contain code, a domain, designs, integrations, research, documentation and infrastructure.
But instead of asking:
Who wants this next?
we often treat the story as though it simply ended.
Maybe that deserves another look.
We Already Understand the Secondhand Economy
The modern resale economy works because it changed one important assumption:
The person who originally bought something doesn’t have to be the last person who gets value from it.
That idea now applies to clothing, electronics, furniture, cars, collectibles and countless other categories. Secondhand has become ordinary — and technology is what made it ordinary.
Technology helped make it ordinary:
- Search made used inventory discoverable.
- Profiles created accountability.
- Payments reduced transaction friction.
- Photos made condition easier to judge.
- Reviews created reputation.
- Marketplaces organized scattered supply.
OfferUp reported in its 2025 Recommerce Report that a large majority of Americans surveyed had bought something secondhand, and more than half had sold something themselves.
“The innovation wasn’t inventing used stuff. Used stuff already existed. The innovation was making it easier to understand, discover and exchange.”
Digital Projects Have Their Own Version of “Used”
A startup isn’t a sneaker. And treating one like a simple consumer product would be dangerous. But there is a useful parallel.
Imagine someone spends six months building an AI application and eventually moves on. What’s left?
… plus prompts and workflows, research, users, traffic, content and intellectual property.
The company may not have succeeded. Some of those individual components may still exist.
useEmark makes this distinction in its own guidance: failure as a business does not necessarily mean every asset created during that business disappeared. Its supported categories include unfinished digital businesses and failed or abandoned startup assets.
That’s the digital equivalent of asking:
What’s still here?
The Internet Is Creating More Supply
This becomes more interesting as AI lowers the barrier to building software.
More people can create. Existing developers can create faster. Non-developers can prototype products that previously required technical teams.
That doesn’t mean every new project becomes a viable business. Quite the opposite.
More experimentation logically creates more outcomes:
- Some succeed.
- Some fail.
- Some never launch.
- Some get replaced by the founder’s next idea.
- Some simply stop.
useEmark calls the resulting layer of partially realized digital work the Unfinished Economy. And unlike a worn-out physical object, an abandoned software project may be perfectly reproducible while simultaneously becoming completely inactive.
That’s unusual.
So Why Isn’t Buying a Used Startup as Normal as Buying Used Shoes?
Because the hard part isn’t proving the startup exists.
It’s understanding what exists.
A pair of shoes can usually be evaluated quickly. A digital business isn’t that simple.
Used Shoe
- Condition
- Size
- Brand
- Color
- Price
Quick to describe. Quick to judge.
Existing Digital Project
- Current state
- Included assets
- Ownership
- Proof
- Dependencies
- Known issues
- Transfer
- Price context
A buyer needs answers about ownership, transfer, revenue, dependencies, customer data, contracts, why the founder stopped and what it costs to operate. That’s why digital-business resale requires substantially more infrastructure than ordinary recommerce.
Even investors who have sold intellectual property after failed startups describe the process as potentially complicated, slow and legally demanding.
The solution therefore isn’t:
eBay, but for startups.
It’s a marketplace designed around the fact that the thing being transferred is complicated.
A “Used Startup” Needs a Condition Report.
When you buy a used car, you don’t only want a picture. You want to know its condition. Digital projects need their own version of that.
Not:
Amazing AI startup. Huge potential. $5,000.
But something closer to a structured report of what actually exists today.
Condition Report — one digital project
Structured information about what exists — not an overall score or certification.
Current State
What is operational today?
What’s Included
Which assets are actually part of the transaction?
Ownership
What can the seller demonstrate they control?
Proof
Which revenue, traffic or user claims have supporting evidence?
Known Issues
What’s broken, missing or dependent on something else?
Transfer
How could control actually change hands?
Price Context
Why is the seller asking this amount?
This mirrors useEmark’s listing preparation guidance: ownership, evidence where applicable, technical documentation, dependencies, transfer information, known limitations and pricing rationale.
“The goal isn’t to make a used startup look new. It’s to show its condition.”
The Next Owner Doesn’t Have to Repeat the First Owner
There’s another important difference between shoes and startups. A secondhand shoe is still fundamentally the same shoe. A digital project can become something else.
Conceptual possibilities only. No revenue projections, percentages or guaranteed outcomes are attached — these transformations may not happen or succeed.
“They are acquiring what exists, not an obligation to recreate what was imagined.”
Maybe “Failed Startup” Is the Wrong Mental Model
When someone sells a used car, we don’t automatically conclude: the car failed. They may simply no longer need it.
Yet founders often treat stopping a project as a binary event. Success or failure. Keep building or kill it.
There may be another option:
transfer it.
That doesn’t mean every abandoned startup deserves a buyer. Some projects have little transferable value; some have technical or legal problems; some are overpriced. That is an argument for better evaluation — not for throwing away the entire category.
Resale Changed When We Stopped Treating “Used” as a Bad Word
Secondhand commerce normalized a simple behavior. For shoes, it’s obvious. For digital businesses, it is more complicated — but potentially more interesting.
Someone else’s stopping point can be someone else’s starting point.
The diagram ends in a question mark on purpose. Acquisition does not guarantee success — the next builder is acquiring what exists, not an outcome.
A marketplace for used startups isn’t really a marketplace for failure. It’s a marketplace for work that already happened:
- Code already written.
- Domains already registered.
- Products already designed.
- Experiments already run.
- Infrastructure already assembled.
… and people who would rather evaluate what’s already there than automatically recreate everything from zero. That is part of what useEmark.com is being developed to explore. Its private-beta marketplace supports eligible digital projects including SaaS products, AI projects, apps, domains, unfinished businesses and failed or abandoned startup assets.
“Stopping work on something doesn’t automatically erase the work that was already done.”
We Resell Almost Everything Else We Stop Using
Maybe digital projects shouldn’t be the exception.
Not because every old startup has value. Not because buying one guarantees success. But because stopping work on something doesn’t automatically erase the work that was already done.
The secondhand economy taught consumers to ask: Do I really need to buy this new?
The Unfinished Economy introduces a similar question for builders:
Do I really need to build this from zero?
The Unfinished Economy
creates the supply.
Start From Here
creates the buyer proposition.
The Trust Marketplace
creates the infrastructure that makes the two sides understandable to each other.
The shoe comparison is an editorial analogy, not economic evidence that the two markets are equivalent. useEmark did not invent digital-business resale, other startup and business marketplaces exist, and the marketplace is in private beta — useEmark does not guarantee listings, buyers, sales, transfers, ownership, authenticity or financial outcomes, and does not remove a buyer’s responsibility to complete their own due diligence.
Private Beta / Early Access
See What’s Already Been Built.
Become an Early Access User and explore the marketplace being built for digital businesses, unfinished projects and the work founders leave behind.
Continue the Idea
More from useEmark’s Unfinished Economy series.
Sources
- 2026 ThredUp Resale Report / GlobalData(supports the scale and normalization of physical secondhand commerce only; not an estimate of any digital-business resale market and not an endorsement of useEmark.com)
- OfferUp Recommerce Report(supports general statements about how common buying and selling secondhand has become; not an endorsement)
- useEmark.com — Supported Digital Assets
- useEmark.com — Selling a failed or abandoned startup
- useEmark.com — Craftr Answers: packaging a digital asset for sale