Stiles, we have the Good Sam extended warranty but haven't had to use it yet.
Your topic reminded me of a month ago, when I tried to find brushes for the landing leg motor and the guys at the Tucson Beaudry RV laughed at me.
I figure that a couple of 2 dollar brush assemblies could save an entire day of waiting around and rig-wrestling to get it down to the repair shop. Not to mention the inconvenience of having it go out in the first place!
Our motor still works fine, but I like having spare parts and I couldn't find brushes for the thing. I'm pretty sure it's repairable because has screws on the back housing.
Our refrigerator just started making noise though, and although it still works fine, it feels good to have coverage in case it does go out. That's the main reason I bought an extended warranty. I just like the feeling of having the bases covered.