I've always been truthful when selling, unlike the first popup I bought. Whole front wall/storage area was water damaged. My problem is if something isn't working, I usually fix it before I sell it to get the best price I can. Had the water heater go out on my last TT. Didn't replace it but told them about it when I traded it in to the dealer I bought my current one from. They appreciated it I'm sure but the trade in price they give people has a significant margin built in to do needed repairs if they discover something unreported.