Why don't Google/Facebook/apple setup satellite campuses around San Jose?

Isn't this what Google's trying to do in downtown San Jose?

https://www.google.com/maps/d/viewer?mid=1Q8JPbI1GRBRztAAI1i...

That's a great project and a step in the right direction, but you need the rest of the companies to follow suit and create smaller satellite campuses in and around.

Why not create satellite campuses in Austin or Denver?

That's a larger question (they'll open sales offices in those areas but keep core engineering roles in the Bay Area).

How would buying real estate in expensive areas keep their costs low?

It might increase QoL for some employees in some ways, but that wouldn't necessarily improve the quality of the company.

What I am trying to say is why do they keep expanding in areas which are already expensive ( Cupertino/Mountain View) and not move to cheaper areas (East San Jose etc). A majority of new home buyers can't afford the areas where they're located and making long commutes.