Ann Arbor is where I went to school! While I was there I had a living situation like a co-op (8 of us living in a large house with a few rooms occupied by random student and non-student subleasers who would come and go every few months), and transitioning from that to living alone in another state has been jarring. I am reclusive to a fault and probably wouldn't have made it through college if I didn't have the friends I made in that house. I'd love to see more non-student co-ops/boarding houses.