I was well paid at Google, and loved working at YouTube. I also severely miss our many friends, as well as beautiful San Francisco: I used to walk up Bernal Hill one or two days a week with my toddler. Pictures of oceans and hills and everything else make me sad…
That said, we could never afford a house in San Francisco. And to get affordable, we'd have had to have gone way out, and the commute would have been terrible.
I was lucky enough to find out that Square has an Atlanta office, full of very smart people, so I was able to keep doing Silicon-Valley-style programming, which is a big win.