> wealthy folks choosing to live in low density areas
There's no way you're saying this with a straight face, right? People move out of the city because it's significantly cheaper. Rent in a nice two bedroom "downtown" is $3500. You move 15 minutes out of there and you can get 3 bedroom house for an $1800 mortgage that'll never go up.
Source: I did that. I got tired of paying such a huge chunk of my income for living.