We had a negative experience with trying to buy out of state used. We chatted multiple times on the phone about a year old Adventurer TC. Asked every question imaginable. Everything sounded great. Pictures looked good. Guy sounded like a good person. What could be so bad in a camper 1 year old and barely used? Plus the guy had added solar which we wanted.
Well, on a Sunday morning we drove 1/2 day to take a look with the ability to pay on the spot, possibly also buying his Ford as a package deal as he was planning on getting a DP.
The owner had left the TC sitting out on his lawn in humid North Carolina with a compartment door open, rain had warped the ply. Inside had greenish mold growth on and in cabinetry throughout, warped trim, torn gasket around slide, evidence of a leak around slide, gross bathroom, awning had been snagged on something and partially ripped out, dirty all around, signs of all kinds of potential problems/neglect. The Ford was a dump with a crack across the back. We just had to tell him thanks but no thanks and turn around all the way back home. What a colossal waste of our time and energy and of a rig that deserved a better owner. Some folks must live in a parallel universe and have a totally different sense of quality, pride, and decency.
Just make sure the unit is inspected with a fine-toothed comb. Use your (or inspector's) nose and eyes, touch all surfaces for anything not quite right. Follow your gut. Good luck!