New vs. old might also be a factor. I live in Atlanta and detest virtually all Sun Belt development in the last few decades because it's so spread out.
The suburbs in the Rust Belt, in places like South Bend, IN (where I spent my elementary school years), or Buffalo, NY, are a lot more dense and palatable in this regard. I'd still dislike living there, but it's a far cry from living truly, honest-to-god in the middle of nowhere in places like ATL, DFW, PHX...
None of ATL, DFW, or PHX can honestly be described as the middle of nowhere. Perhaps "middle of nowhere" is just your strongest verbal condemnation of a location, but using it as such dilutes the quality of discussion by robbing it of precision.
On a separate note, ATL, DFW, and PHX are all awful to me as well, but that's because of the life-draining sprawl, not because they're sparse. I fear for the future of housing every time I have a window seat in or out of ATL looking at those developments.
The suburbs in the Rust Belt, in places like South Bend, IN (where I spent my elementary school years), or Buffalo, NY, are a lot more dense and palatable in this regard. I'd still dislike living there, but it's a far cry from living truly, honest-to-god in the middle of nowhere in places like ATL, DFW, PHX...