I have a TT, not a 5th wheel, but one very attractive thing I've found about a 5th wheel is that most have a built in generator, which will allow you to run AC and other accessories while not hooked up. Granted one can always add a generator to a TT, but then you run into issues of where to store it, etc... I've also really liked the 5th wheels with the layout of the living room up the steps towards the front of the trailer with dual slides. It really makes you feel like you're in an actual home. If I were to go to more full time RVing, I'd definitely consider a pick up and 5th wheel. It's true though that you will spend a lot extra for a similarly featured/finished 5th wheel than you will a TT.