I'm not convinced that this "new" policy would lower the trade-in value unless a purchaser lived a fairly reasonable distance from Alabama. Since I live on the west side of the US, I wouldn't even consider driving all the way to AL if I needed to get work done.
I can find competent repair places in the western states IF I ever need a coach related item repaired. So far, the only things I have needed repaired were Cummins and Dometic related. Everything on the coach itself has worked as designed with no problems, and this is on a coach that is 14 years old.