This is great. When I was once looking to join a start-up I met with people who wanted to build a "social fitness food" website, a "social ebay where people shared the things they bid on," a ton of "new way to share music," a social "t-shirt based on Twitter" business, a ton of "new way to share images," a "music video" business, a "new way of producing music in the music" business, etc...

I met a few companies solving real problems. I joined one. Never looked back. Real problem, real solution, real money being paid for it.