NADA is one tool. During my search, I used nada, the ppl site, ebay, and various other dealership websites to estimate value. I found that the higher quality coaches which were in demand were going for high to above high nada. Lower end coaches were going for below low nada. I looked for 2 years and seriously looked for the last year. I went to all of the local shows, looked at lots of pp sales, and went to local dealerships multiple times since their used inventory is fluid. I ended up pulling the trigger on a used monaco from a dealership that I had visited 3 times. During the previous visits I thought they had junk. I bought my coach before Christmas. They later told me sales were slow, and I would never have received the same deal in the spring. Based on my research, while I am skeptical of salesmen, I think they are correct. Best wishes on your search.
2008 Monaco Monarch 34 sbd