My parents were RV'ers for about 20 years. They had a bunch of different ones, bumper pulls, 5th wheels, and a couple motor homes. They finally settled on a bumper pull so Dad could take his car top boat for fishing. They got tired of the high cost of MH's. There was always something expensive to fix.
At one point, Dad put a propane conversion kit in his pickup with a large fuel tank behind the cab. Then they took a Good Sam caravan tour of Mexico with a tour guide. There were something like 30 RVers in the group. Mexico was in middle of an oil crisis with rock bottom prices. They were burning off gas just to get rid of it. Propane was a few cents/gal, so cheap that their 3500 mile trip only cost them $20 in fuel. You don't get that lucky very often.
