The biggest issue buying used seems to be finding what you want, and in good shape too. And many of the late model units the owners are underwater on their long term loans so they want almost as much as new. But there are deals to be had out there, as many of our members will attest. Just have to get lucky and find a cream puff with the floor plan, colors, length, weight, equipment etc. you can live with.
2004 Chevy 2500HD Crew Cab 6.0l, 4.10r
2010 Jayco Jayflight 28BHS
Reese Strait Line with Dual Cam
P3 Brk controller