I think a lot has to do with the market, your niche and your sponsors. One thing I will say...I think if I had known better, I would have built a bunch of different sites, then launched them all at the same time.

I'm working on a "TUBE" site and have nothing else out there, stupid, stupid, boy! I have to have something else to put out there so I might just start making some "FREE" sites and submit them.