I've had my TC almost 12 years, and it's never been back to the original dealer for service. The furnace has been serviced, and the AC has been replaced. I shopped for the best deal. I did the rest of what needed to be done. The service at RV dealers varies. The appliances in the TC are pretty generic and any RV service or repair shop can do the work. You also can find details online. It's good to know how it works when you are camping in any case.
Other than fixing manufacturing issues that could be noticed before delivery, I can't think of any reason to have the work done at the original dealer. I know people who have RVs that spent the first 2 years at the dealer. For that reason, I'd much prefer a used one that has been used and not abused over being the person who has to get it fixed as it should have come from the factory. Of course, the other benefit is they are much cheaper used, and most RVs just aren't used over a few times per year.
