Yes I would consider it a desert for sure, once you get out of that hill country it get pretty baron in some spots. Land is crazy cheap, but worthless unless you can run a sizeable cattle operation, but even then you need plenty of acreage to make sure you can grow your own feed during rainy season, but it will still go belly up in time. Lots of decent size ranches have been selling off since the mid 90s into small lots from 200 acres to only 10 acres with some crazy jacked up prices line 200 bucks an acre, but city folks eat that up just to have a decent place to hunt.
but man if you want Indian artefacts or fossils then that is the place to go, blind folk can find it there.
Not sure if they still have rattle snake round ups or not, but back in the day we would head to west texas for a week and could easily file 4 large trash cans with rattlers, had one great year and got eight can full. Take them back to the ranch for two months before the round up started, threw them in small closed pits and feed them fat.