Just as Rodeo Drive symbolizes movie-star glamour and Wall Street represents corporate money, Sand Hill Road has long been synonymous with the bundles of cash backing the tech industry. But the Menlo Park street that houses some of Silicon Valley's most prestigious venture capital firms and has funneled money into the likes of Facebook, Google, Twitter and Instagram, is no longer the VC mecca it once was. "I think, in my mind, there's sort of this mass exodus out of Sand Hill Road, for good reason," said T3 Advisors Managing Director David Bergeron.