Really depends what the scope of your project is. I'm a developer, I could build a site for the cost of hosting (and time). If it can make a few bucks a month i

Really depends what the scope of your project is. I'm a developer, I could build a site for the cost of hosting (and time). If it can make a few bucks a month its "profitable". But you still have a ways until you are generating enough revenue to have a payroll, benefits, an office, etc. No one really knows what the scope of his investment is. Mark is a smart guy, I'm sure this is a testing stage. So, he gives you a few thousand dollars (if that) to "test" for 90 days. If it has potential to make money, who knows where it could go.