This sounds a bit like asking why anyone buys a Brita pitcher instead of investing in water & sewage sanitation. The cost and effort involved in chartering a f

This sounds a bit like asking why anyone buys a Brita pitcher instead of investing in water & sewage sanitation. The cost and effort involved in chartering a few buses is pretty minor next to re-tooling the Muni, BART & Caltrain systems. The results are also instantaneous. They need to attract employees now, and not in 5-10 years time. It's worth noting that a public transit commute between SF and SV can involve up to 3 distinct transportation systems. For instance, when I worked for a startup based in Menlo Park I contended with a trifecta fail-fest of Muni (bus) -> Caltrain -> local shuttle, totaling 2 hours each way.