I think it may depend on the type of startup. If I was a "dating" related startup, I'd want to be in NYC. NYC is very huge on the "dating" scene. Heck, they have speed dating there where the guy has to make at least over half a million dollars a year and the girls have to be 'hot' to attend the speed dating session. Tickets cost $500 per person and the speed dating sessions are always sold out.