1997 american eagle vs 2000 monaco diplomat

I've been doing tons of research on very similar age models in preparation of buying someday. From what I've gathered I'd be most interested in service history and usage history. Did one get 75K miles in two years and then sat idle for 5 years? If so, not good of course. The actual miles are close enough to be a non-factor to me. All other things being equal I'd opt for the newer one just since it's 3 years newer. But mostly it would depend on the floor plan I wanted and just my gut instinct of how well it had been cared for (along with the records you can get, of course).

Take your time and do lots of research. It will payoff in the end.