Earlier quoted context omitted.
This is one of those things that is a great idea until it isn't. When your employer goes belly up, in SF, you have to fight off job offers. That's not going to be the case elsewhere. It's also much harder on the employers: if you think finding one good job is hard, try hiring an entire team of decent employees at once. Ultimately, it's worth the extra cost of staying where the tech is, prefixing your city name ala 'S…
So I should keep losing money for the possibility to find another job similar to my last one so I can keep losing money?
Sure, maybe you would be better off somewhere where the competition isn't as hard, and the living costs aren't as high.