On the other hand, I always figured that people stayed in La Crosse because of family ties. While it is a lovely place (it is on a stunning spot on the Mississippi River), it is, well, small, and pretty homogeneous. It was quite clear to me, however, that the people who stayed there generally enjoyed living there.
And so we sort. Having lots of variation in cities almost certainly allows people to be happier, as they (often) find or stay in the place that best suits them.
Let me finish the post with a picture of a sign one will certainly not see in Los Angeles.