The original purchase will get your RV. You should also have a good emergency fund for repairs. Tires for a Class A run $500-$1000. and usually RVers don't wear them out before they have deteriorated from age (5-7 years). Everything else will cost more on an RV for service. When we got ito RVs in 1969 my car could pull a TT. That is no linger true. I have had 6 motorhomes over the years and the only one that gave me any problem was the new one. The 5 used ones were much better for dependability. I got into my Roadtrek after losing my wife and the GMC was a lark for me that just hasn't worked out. I can't climb the step to the driver seat which was the same reason I had to sell my Moutain Aire.