This is what tech money does to a city. Rents go up, everybody interesting leaves for places they can afford without a ludicrous salary.
- You'd have to include SF, San Jose and Oakland together to equal the size of NYC (and much of that SF metro area is single family home suburbs with no one on the street at night)
- Tech workers concentrate in SF proper because there is not much outside of it (yes, there is, but SF is the core)
Just my take, but SF seems to revolve around tech, while finance is big in NYC, it's not the dominating industry like tech is in SF.
you ignore a lot of other industry around the bay and around nyc. Neither Queens nor Fremont are representative of the other areas, neither is Brooklyn or Oakland. Or Berkeley. Or Bronx.