2008 Four Winds 31P w/72K miles. Is that alot?

Well, it depends, more important, how has it been maintained? Engine, chassis should be good for many more miles, its the rv portion that will cause you grief, leaks, delamination, mold, non working appliances, a/c, generator, etc. Tires if over 5 years old, may need replacing. These issues relate more to age and deferred maintenance than miles driven, in my opinion sitting is way worse than driving

Carl