People still need trucks to carry stuff, but they really do not need a large 6000 lb SUV to commute or go shopping. After spending $100 to fill the tank many people will think twice about purchasing one of these behemots. People lesasing these things really don't have that much extra cash, otherwise they would be purchasing
GM has to get its act toghether and get some good and interesting high mileage machines out soon, otherwise they will be in the scrap iron business.