My in-laws bought a recreational vehicle over a year ago and they have been traveling the country, going from New London, CT to Texas and Mexico several times since they first hit the road. They have however learned that RV repairs and tows can be a challenge depending on where they are located. Until they started their adventures I was not aware there were companies out there like good sam towing that specialized in RV towing.
What is nice is they even provide coverage in Mexico. Services like this to me follow a somewhat Murphy's law concept, if you purchase it, chances are you won't need it and if you don't? You'll probably wish you would have.