The motorhomes are complex. They are put together with lots of items from other manufactures who will stand behind their product. My engine is a Cummins, the chassis is freightliner, the tv sony and so on. Some dealers will work on all the items and others will refer you to the manufacture of the item, therefore you are on your own. I have been to the dealer who handles various rv's, Winnebago factory, frieightliner and cummins. I like Cummins out of them all, so far they have been able to work on whatever I needed done. Our unit is a 1998 left over we purchased new in 2000 and have put 80,000 miles on it. We intend to take it to Alaska this summer. I have read that around the ten year make your appliances will start to go, so far that has not happened to us. We have had a few repairs along the way and of course the heated discussions witht the extended warranty people(they are not in the business of paying claims). I have also heard some of the manufactures dealers are giving up to 45% discounts on MH's without warranties for companys that have gone bankrucpt.
I think you can find someone to work on your rv, however, some dealers refuse to work on a rv they did not sell.
Put your money down, watch it depriciate and take your chances.
happy hunting,
Russ