My wife and I are in our 40's and have no kids. We take our trailer out weekends 8-10 times a year. We started out with a slightly used Jayco 19RD at the beginning of 2015. We just traded it in a much roomier Wildwood 27RKSS.
We've camped mostly in the foothills, delta, and a few other places.
Due to work schedules, we haven't yet gone out more than 4 days. Nor can we go out from July to late September.
Most of the campgrounds we use are KOA or Good Sam parks. Some are near casinos so we can play the penny slots.
We haven't had much luck finding people our age with RV's to go camping with.
Thanks for the add, Dennis & Cassie.