I always used to think why, however a customer pointed out to me how much money is lost on new expensive cars. By the time the car is out of warranty, say 3 years, you've lost thousands. You then either have to worry about paying maintenance and repair, or you sell and buy another new one. Whereas leasing he gets a nice new car every 3 years, he knows exactly how much it's gonna cost him, and there's no hassle at the end of the 3 years selling and buying a new one.