I am not in the bay area, in fact I've never even been to the West Coast. So I am going to ask what may seem like a stupid question to some of you. I mean this in as polite a way as possible, but why wouldn't established companies like Stripe just fuck off to another city entirely? It's a successful company with a great product - that I'm sure many people would like to work for. They could surely lure talent from the…
the long term root is that there is a huge productivity advantage to clusters of workers. (or, at least many people believe so) Around here, if you strike up a random conversation in public, it's very likely you will do so with someone who does something relevant to what you do, and this is good for getting new ideas and really good for getting new contacts. Right now? there's a huge concentration of programming know-how in silicon valley and san francisco, and building that sort of cluster somewhere else would be really difficult. (I think Los Angeles has a similar situation, only with the movie industry.)
I literally found someone to buy my company at a (non-industry) party. (I mean, I did a bad job of it, I was drinking too much and complaining loudly about how much it sucks to run a company and how I had fucked up like three really good chances to sell the thing and generally being a downer, which is rude, I think, at a party, but also not how you maximize the value of the company you sell. Still, I got an impactful amount of money, and more importantly, I got someone else to run the damn thing so I could go get a job that paid without dumping my existing customers.) I've solved technical problems in similar sorts of ways; it's completely normal to go hang out with friends and actually solve problems over drinks or pizza or whatever. (which yes, is a culture some people hate, and I totally understand that, but some of us like it, and like it or not, it's certainly effective.)
Another bigger microeconomic factor that people who don't live here don't understand is that California laws and cultural norms are set up to privilege people who have been here longer. If you bought a place here in '08? Silicon valley isn't very expensive at all; our property taxes are largely fixed based on what we paid for the place when we bought it. This is kinda true (but to a much lessor extent) for rents; I know a lot of people paying under 2/3rds what they'd pay in rent if they moved in today, even without rent control. with rent control, paying under 1/3rd what they'd pay if they moved in today is not uncommon. This means that the sticker shock you get from the outside looking in isn't actually what most of the people who have lived here long term are paying.