You may want to consider a private sale also. We found our (now sold after 4 years) 2002 Georgetown 32' from an ad in our local newspaper in 2010. The people selling were the buyers from new and had really looked after it well and it only had 11,000 miles on the clock. The 5.5 Kw generator had 44 hours on its time display.
The husband had developed medical problems and was unable to travel. We paid $37,500 for it and sold it 4 years later for $22,000 through a consignment dealer, which I would NEVER do again. It certainly wasn't a Rolls-Royce standard of vehicle, but it served us well.
The only expensive problem we had was a fridge failure that needed replacement. I'd recommend a close look at the fridge in vehicles of the time frame you're considering. The one that died was a Norcold model made in Scandinavia somewhere. It had no variable control of temperature.
Also check the awnings. The rig we bought had been parked for about 18 months with the living room awning deployed, facing south. What I thought was minor fraying on the forward edge was actually an indication the entire awning had rotted out, leaving only the netting which had carried the vinyl. That resulted in my having to build replacement cabinets for the living room in addition to having a replacement awning installed.