Arizona. Try Quartzsite, and nearby cities with full hookup sites. THey also have plenty of dry camping for those waiting on the next SS check to show up, and trying to spend a few weeks saving up for more gas.
Tucson has some great places to visit, and are a little cooler, with higher elevation. Benson is even higher elevation, and would be cooler in October and April, a great time to visit that location. Tombstone and Lake Patagonia are other local places to visit, along with the museum in Tucson.
Laughlin NV has several casino's and Riverside RV park is very nice for a short visit. Across the river is Bullhead City, a affordable city where all the Casino people who work there live.
Grand Canyon is a wonderful place to visit, and the dry camping inside the park is great views. Just outside the park is a full hookup site. Across from that campground is a huge screen theater that you can see high quality films.
There is so much of this country left for me to see.
Fred.