Having moved from San Francisco to Champaign, IL myself. There’s something to be said for a 5 min commute, lower taxes, a yard. There’s still a fairly large tech community here. Wolfram has its headquarters here, and there’s tons of tech companies, albeit mostly remote offices.

Honestly, I’d have trouble moving back to a large city. It doesn’t have much more to offer, and what I’d have to give up is significant.