I am from Northern California. About 10 years ago I moved to the East Coast for grad school and stayed to work. (Those details may not be all that important.)
I get along fine here, have a good number of friends, I suppose am professionally successful (research/analysis field)... but this whole time I haven't come to the conclusion that this is where I want to settle down long(er)-term. I don't own my home or a car--but am in a position where I probably could afford them--and am not in a relationship. Other West Coast-born friends have made the reverse migration happily.
So I'm thinking about going back. I still have a smattering of good old friends in CA that I talk to sometimes, and see once or twice a year when I visit, who occasionally ask if I'm thinking of returning. My family would be happy to have me nearby and I would like to see them more too.
BUT: ten years is a long time. I don't know if "reverse culture shock" is really applicable, but I do wonder what else I should consider or look out for. Have you done anything like this? Was it hard to reintegrate? (Special locational bonus: I know the California economy has been slow to recover from the recession, but what else specific to the Bay Area might be a rude awakening for someone who's only visited briefly over the past few years?)
I did check out this question
and while that was useful, I'm so much not looking for "help me justify this idea" advice.