I think the allure of SF is its network of entrepreneurs and the natural tech ecosystem. Entrepreneurs can certainly work anywhere in the US, but you've got to

I think the allure of SF is its network of entrepreneurs and the natural tech ecosystem. Entrepreneurs can certainly work anywhere in the US, but you've got to admit that SF's place as a tech hub (and its proximity to SV--think investors, mentors, tech-strong univ like Stanford and Berkeley) is hard to beat.