You're describing the city mouse and country mouse. I don't know what you want me to do with that.Well, I sure as hell wouldn’t live there. Too expensive for one. I hate traffic for two. And I am not sure I would love living in Cali for three. My area is way too conservative for my wife and I tolerate it, but I feel like Cali would be way too liberal for me to survive
San Francisco wages and costs are linked, hence most people work there, make money and pad their resume, and leave. It's like most big industrial hubs. You don't need to live there forever.