We're on our third Class A in 23 years, and we owned a cab-over camper before that. All three motorhomes were less than two years old when we bought them. None had any chassis issues, but all three had some minor House issues when we took delivery. I was able to fix them all in short order, at very little expense.
I've always felt that if you're even moderately handy, you can save yourself a lot of time, heartache and money by taking care of most things yourself - even if the RV is new. No, you shouldn't have to repair anything on a new RV, but that's pretty pie in the sky. It can be a PITA to schedule an appointment, take the RV to a repair shop, then pick it up again - especially when the RV is 43 feet long and the shop is across town.
Another real benefit of doing things yourself is what you learn about your RV. That knowledge base builds on itself, so if you're stuck somewhere with a serious problem, you might be able to take care of it yourself.
Kev