Other than 60-year old retirees with way to much money to spend, who things to themselves "Hmmm I would love a big mobile house that gets one mile to the gallon and takes up one and a half lanes of traffic"?
Yesterday, on my way back from Bozeman, I found myself in the midst of an RV convoy. There were three of them in a line, each hauling a camper behind them. Much like a street gang in "Mad Max" They would rumble through a stretch of road at 80 m.p.h. nearly losing control of their vehicles at every corner and boxing in poor, unsuspecting cars while they tried to pass them. Since these RVs had no really passing ability whatsoever, cars had to wait agonozingly long as they tried to creep ahead.
It was the grossest mis-use of motor vehicles I'd seen in a long time. I counted at least three accidents they almost caused. Can't wait for their drivers licenses to be taken away.