Be aware that the NADA values for Motorhomes appear to be mathematical computations only. That percent of depreciation is created (not measured) by NADA.
Used Auto values are reportedly based on actual sales transactions since there are lots of dealer sales reported of each model each year.
Not so with Motorhomes. Even fewer dealer transactions with Country Coach Models occur and may not be reported to NADA.
Use NADA as a guide but not gospel for Motorhomes.
1995 CC Magna #5280
C8.3L 300hp Cummins, 31,000lbs