This really is not a fair question without knowing how the units have been used and taken care of. There are campers that get used 2 or 3 time a year and some that are used continuously. Some owners are very handy and perform the routine maintenance, others do nothing but hook them up and go. Our 08 Cardinal gets used average 60 nights a year and has about 30,000 miles on it. There have been some problems, but there is no delamination, the decals look great, the roof has never leaked. It has spent it's entire life outside in the weather, never covered. I have replaced some things, commode, lavatory faucet and one axel due to damage from a bad bearing. The interior of the camper looks as good as it did the day we purchased it. I owned 2 Jaycos(1999 & 2006) and Prowler (1986) all of them had leaks by the time they were 3 years old. The one Montana(2005) that I owned was a good camper. The biggest problem with it was the peeling decals and one grey water tanks fell partially out. The best one that I have owned was a 1990 Holiday Rambler. The only one that I did not purchase new was the Montana. I actually traded the 2006 Jayco for the 2005 used Montana. With that said, would I buy another Jayco or Monatna? Probably, my friends have them and have no problems.