I will chime in on this....I paid $10K for my 20 year old 36K mile class A with about $9K in new repairs done in the last 3 years. If you look and check EVERY system for operation you can own a dependable one for a little more than your rental will cost. If you have storage space you now can use it anytime you want.
If you by a $60-$70K unit you will take a $20K hit a a minimum to sell it. Remember, a dealer won't pay you cash unless it is below trade value and a private buyer with that cash will be looking at dealers for the warranty.