i think the presence of a bubbling community of like minded people is a plus. You are exposed to more talents when you want to hire, there is more accessibility of funds. Oh, the press is going to talk about you.. whatelse? nothing
I like it here, a lot, but I find it very hard to find people who actually have the same product building interests. Plenty of people who like the same tools (RoR, iOS, JS, etc) but much more difficult to find people who are as passionate about X and Y as you are.