I owned a 1993 DP an Airstream. It was a nice coach and we rod over 100,000 miles in it. I sold it in 2015 as it was getting too expensive to maintain. This is a coach that I had for many years and knew the history of everything since it was new. I can't imagine buying a 20 year old unit myself. There are so many different questions and unknowns that it is a complete carp shoot. I myself would think putting the projected 5 year cost into mind and buying a more recent RV with the money you will save.