For my group of friends, about 2/3 got out of the city as quick as they could. For the same price house, the suburbs offer a lot more bang for the buck, significantly less crime, and several of them don't even have kids yet.
Granted, we don't live on one of the coasts. Part of what makes flight out to the suburbs easy is that public transit and driving in for commuting to work isn't terrible, though about half of us are working remotely now, so it's really more about access to occasional entertainment than anything.
Personally, I moved out to a cabin in the woods, though I'm still close enough to the big city if something comes up. It does crimp my job opportunities since I don't want to commute in on a daily basis- I'm now limited to remote work, which has a much larger talent pool to compete with. Even still, there's nothing I would trade it for. Maybe when I'm old and senile, but until then, you won't catch me moving back.