I feel a lot has to do with which company you get the extended warranty from. I have a 7 yr 100,000 mile bumper to bumper warranty including tires and wheels. For me the peace of mind that comes with that is comforting. I had the same extended warranty with my 5th wheel and they covered 5 new tires for me, plus a few other minor issues. I have a $50.00 deductible. Only thing with tires is you can not mention road construction that is the catch on them to reject the claim. Nice thing is the dealer that I purchased the motorhome from included that since I traded in my 5th wheel and the warranty is transferable. If i'm not mistaken it was only $3000. for the motorhome. Bottom line is you need to do what will make you feel best at the end of the day.