I have been part of feinternational for sometime and saw their prospectuses. In general, if there is an existing user base, then the price factors it in already. You must have a plan and ability to increase the userbase in order to get a return on investment. Otherwise, some competitor may simply attract your customers and you are doomed.

It works very well if you are already the bigger competitor :-)

Agreed. But I was talking from perspective of being a passive business for a single person

Are there any good sites that do that... seems like they're filled with sites that are hard to verify if they're legit.

you might want to check MicroAcquire

Require you to have a linkedin account to continue. Depressing. I gave up.

I was disappointed by that website. You can’t see much without registering and once you have, you still can’t see much about businesses (let alone ask questions) without buying a 300$ membership.