OK I have a question about 5th wheels.....do some/most have a propane generator system built in or is this an oddity. I am very new to this idea RVing. I was a backpacker in my younger days. I have been looking at E Bay just for some ideas of what is available. I like the idea of a towed trailer that could be stored at a home base type arrangement while the truck could be used for day trips. Any thoughts would be appreciated. Happy Thanksgiving !