I know a guy, that owns 2 HIGH mileage Yukons. They bought them to replace their gasser Mini-Van OverSize E$cort vehicles. One truck is at 129k miles, the other is at 138k miles. They are averaging 35 mpg over the life of the vehicles. One vehicle has higher miles as they park the lower miles truck with the OverSize truck, and use the higher miles truck to go to the hotel/bar/movies/whatever.
Only complaint they had was that the dealer couldnt get parts to fix a minor accident (Deer), and they were stuck with a F150 for 3 months. They were glad to get the Yukon back.