I have to put in a word for AAA although I admit I haven't tried Good Sam RA.
We bought a 40' diesel pusher last year and on the way home I tried a tight corner in a parking lot and the tail pipe hit a rock and broke it off the muffler. Running the coach would have put fumes into the bedroom so I called AAA.
It was late and they had to come 100 km so they couldn't get us that night but the next morning I was very pleased to see a semi with a 48' lowering flat deck pull up. We loaded up, and he carried our coach to a welding shop where we got fixed up. The driver was probably the most pleasant service person I've met in my life - very was professional and extremely courteous.
I was especially pleased to note that our RV coverage was under $200 but that tow bill alone would have been about $1100! Thank goodness for AAA - that bill would've ruined the last day of our vacation.