I am looking at a 150000 mile 2005 Z71, all highway miles. Never been used for anything but basic towing and a family wagon. It is in excellent shape. New shocks, struts, and brakes. It is fully loaded, and I love it. This is my first Tahoe, but I am really nervouse about buying a truck with so many miles on it. Any opinions on this car from Tahoe owners that have high milage, and can I expect to get many many more miles out of it if taken care of. Thans for the input.