I am thinking of getting a RV Van (like a roadtrek) around the 70-100k miles 10+ year range. Is there anything I need to be wary of with such age and mileage. I typically buy cars around 40-60k mile...
Even at the 10+yo range, be aware that rubber parts are aging out. Not just tires (I hope everybody knows about them), but belts, coolant hoses, rubber brake lines and the brake fluid itself are about done. (Says the guy that drive 15~20yo vehicles.) Flush the brake the brake system for sure, but be aware that other thing will come up to bite you.
Other than that, Hey! it's new. (Relatively speaking - says the guy with a 40+yo coach that did 3000+ mile this spring.)