I think the big question is what will it cost for equipment? The first thing I would do is price the competition. Say you're old ass (
) is throwing a birthday party and you want to rawk to REAL music. Get some quotes, feel them out for what a customer can/cannot get with them. If you can pay off the equipment in a relative few appearances, it would be worth a shot. But see what you can get from the competition and make sure you're better.
Interesting idea.