Why did they move to such an expensive area? If their goal is to provide services and help everyone why not build your university in an area like Detroit? No one who is really interested won't go because of the location and it makes rent really cheap. Hell, you could also have the Detroit government chip in and give you a great deal on land. What is bad for an economy about bringing some of our nations smartest progr…
I hear they're not in San Francisco, but in Fremont, CA, which is somewhere around the Bay, but not technically in the Silicon Valley (it's about an hour away of public transportation from the interesting places), which explains why it's probably more affordable over there.
In this case, it seems like it would have been a better choice to build the school in San Francisco proper, than its outskirts. The marginal gains in affordability aren't worth sacrificing proximity to the tech industry.