Teen-era testosterone levels regenerate. The intellectual centers begin to shrivel up. Obstacles become adventure. The GM diesel V8 and the MT tire noise conjures up a hellish racket appropriate to moving out a battalion bent on destruction, but out of tune with a commute. There is plenty of insualtion and sound deading material to carry on a normal conversation.
Some owners spend more time under it doing service, than in it.
It may be less aggravating and cheaper just to buy a new hummer when the tires need to be replaced. That depends on how much money your WIFE wants for herself, after you decide you would like to get one. The Kids and Grandparents will refuse to drive in anything else. Somehow, one continues to enjoy having the vehicle, even with the numerous problems one encounters. Technology Maniacs like it.