I know people who always buy the warranties on all the products they buy too. Now that is a huge waste of money. I wish that for the last 10 years or so every time somebody offered me a warranty on some item I bought from a store I would have asked how much and then kept track all these years. That number would be in the thousands of dollars if not over ten thousand by now. And to the best of my memory, I've never had anything break that would have ever been covered by one of those extended warranties.
I used to buy the warranties on cars and like I already said I bought it on my motorhome too. I have used the extended warranty several times on cars mostly for minor repairs. So if I added up all the extended warranties on cars, I'm many thousands of dollars in the hole on those.