Obviously, this means camping without electricity, water, or sewer connections, but most RVs are self-contained and there are people who will bring you water and empty your holding tanks. People show up year after year and meet friends there, so it is also an opportunity to socialize.
Here are a couple of pictures of people camped in the desert.
If you prefer a commercial campground, there are lots of those also--about one every 10 feet!
Because there are so many RVs, there are lots of businesses trying to sell them parts and new and used RVs. So you can upgrade while you are here, or get yours fixed up. I have never seen so many RV dealers in such a small area.