You have to wonder about the job security for the guy and his wife in the Bay Area.
If their careers are in tech areas then their employer may eventually figure out they can hire remote workers who live in lower cost areas—and make these two go away....and save a ton of company money.
Living in high cost areas will continue to make less and less financial sense....
One of the best stories I recall in the Bay area was a guy that was selling imported Persian rugs out of his warehouses. Quickly found out he could lease space to start up companies. Eventually starting taking positions in them rather than cash. Very wealthy man.