We ordered our 5th wheel thru a small dealer..........upon delivery we Hit the road FT and never took it back to that dealer cause we were never back in that area.
Warranty issues....we called the RV MFG. and got an 'authorized' mobile RV Tech. Had to pay a 'service fee' but rest of repairs were under warranty
And some warranty issues.......I fixed them myself as it was easiest, less cumbersome and didn't have to wait for approval/authorization
Sometimes it is best just to git 'r done
We bought NEW cause we ORDERED it with some stuff we wanted and deleted some stuff that we thought was unnecessary
YES ....dealers do NOT have to preform warranty work if not purchased from them. They MAY...but you will be low priority/go to back of line
*Some dealers are better then others.
Used RVs can be worthwhile.......already taken the 'depreciation', MAY have already had the 'bugs' worked out or may be piece of junk
**If buying used I would recommend an 'RV Inspection' be conducted (like a home inspection prior to purchase)
Good Luck!