This is what a RV manufacturers rep told me: RV dealers are not the same as car dealers. RV dealers are independent businesses, not franchises. They buy the units from the manufacturer and resell them. Each dealer sets their own policies for their service department. If you have a warranty issue the manufacturer can't force the dealer to service your unit first. So get this - there is no timeframe when a dealer has to do your warranty work. And since customer-pay jobs are more lucrative than warranty work, guess who gets shuffled to the bottom of the priority list?
Now you know why the RV industry fights against any Lemon Laws for RV's. Probably half of their units would be buy-backs under a 30-day out of service rule.
A good dealer is worth his weight in gold. We bought our previous TT (Thor Heartland) from a small family dealer. 7 employees, and the owner was our salesman. When we did our PDI and took delivery the dealer gave us a list of items they found and corrected between the time we bought it and the time we took delivery. And that trailer never went back for any warranty work.
Contrast that with the new TT. It went in for the 3rd time 4/27 and the service writer said we "might" get it back by Memorial Day. This is a large, multi-outlet dealer. Guess where I won't be buying the next trailer from?
My point being - you can buy an Airstream from a bad dealer and a cheap Thor from a good dealer, and be happier with the Thor.