> The remaining $20,000 is contingent on Tweet Photo making that much (or more) in revenue within 24 months of the acquisition.
So it's sold for $10k, and a max €20k revenueshare on a service that currently does 1620/year
Based on some initial tests and analysis of Tweet Photo's current funnel, that $20,000 goal seems more than plausible.
But you're right in that it's definitely not certain and this type of deal has some inherent risk.
Not necessarily saying you should have done, just think personally I'd be shy of anything more complicated than 'here give me cash and take this, kthxbye'.
You won't find any acquisition more than maybe $5k that is "Here's the cash, thanks and bye."