You really need to read the details of each plan and when evaluating AAA, make sure they have the same coverage in all the areas that you expect to be in or drive through. On the East Coast, AAA Plus with RV is great. I have never had trouble getting service no matter where I have been. My AAA region will change an inside dual on the motorhome. However, they will only cover if swapping with a spare wheel and tire. They won't cover having the mobile tire guy bring a spare tire or put a tire on an existing rim.
We live in GA and have broken down several times outside our region. Actually have only used AAA once or twice in my region. Fortunately, the region that we broke down in had the same coverage, so there was no problem. The only issue was it took about 10 extra minutes for AAA to jump through whatever hoops they need to for the different region.
One big benefit of AAA over any other plan I have looked at is that it will cover any vehicle. I don't have to register vehicles with AAA and the vehicle requiring service doesn't even have to be mine. I was in NJ visiting family when my brother's car threw a serpentine belt. I called AAA and then drove over to meet my brother. AAA took the car, I took my brother. No questions asked except, can I see your membership card? AAA will offer any service for any vehicle as long as I am there to show them my card.
AAA offers discounts at many, many places. Usually the savings we get from being a AAA member usually pays for the membership.
-Michael
