I live in NYC right now, but you couldn't pay me 5 times the salary to move to SF. NYC knows how to build housing. While it can be expensive in the newest buildings in the most convenient areas, if you go to the outer boroughs, you can find plenty of spacious housing for decent costs and a 30 min subway ride to Midtown. SF needs density, and fast or they could keep driving out the average citizens. But tech workers probably don't make good firefighters, police, or trash collectors.