I think the idea of a Repair Savings account is money better spent. If you don't use it for repairs, it's yours not the Extended Warranty company's. Over this past summer we had about 5 things go wrong with our camper. Between a new house battery, some plumbing repairs, a new shower curtain setup (replaced problematic door) and replacing the Converter/Charger, we spent less than $600. The most expensive being the plumbing repairs since I had to have a mobile RV repair guy come out to do the work (less than $200 parts, labor and service call charge).
Most likely, the only thing that would have been covered would have been the converter/charger. However a new Progressive Dynamics PD9245c cost me $160 delivered and I did the work myself in about 1 hour (would have been 10 minutes if access to the old one didn't require some serious creativity).
The cost of the extended warranty when we bought our MH was just under $6000. With all the repairs we've had on the motorhome over the years, we haven't spent $1000. For us, not getting the Extended Warranty paid off.
-Michael