We camped at Dead Horse Point State Park in Utah at the end of May this year. I was stunned at the sheer SIZE of many of the RVs there and only a few campsites were in tents (we were sleeping in our van). Because all of the sites had electricity, I noticed that it was a very QUIET camping experience -- everybody stayed inside their monster motor homes & 5th wheels watching TV in the evening and nobody needed to run a generator. Kind of sad in a way that everyone was inside on such a wonderful, bug free evening. Not even the sound of kids playing.
As a side note, a quiet drama played out in the adjacent campsite. A couple in a small sedan drove in and the guy started to set up a very small tent. Somehow (as I said, a quiet drama) some key component of the camping experience was not packed in the car, it was someone's fault, the tiny tent came down and off they went. In the morning, there was another generic silver sedan (Camry, Ultima?) and two dome tents, side by side. What the heck? Someone drove up and set up two tents in the middle of the night and we never heard them? A bit later, three girls came out of one tent, two boys came out of the other tent, they ate granola bars quietly, broke camp in a quiet organized way, packed the car efficiently, all five got in and drove away. Not weird by any means, but just.....unusual

for five college-age kids. (Not complaining, no, not at all).
Wanted to note that state parks in Texas and the few we've been to in NM, CO and Utah all seem to accommodate both trailers and tent campers pretty well. Many state parks, though, aren't set up to accommodate the monster RVs and 5th wheels.