Your tires will last a lot longer if you rotate them. The tires on your car do not wear evenly; for instance, if your car has front wheel drive, your front tires wear out twice as fast as the rear tires. Also because we generally take left turns faster than we take right turns, the front right tire wears faster than the front left tire. For this reason the front tires get rotated with the back tires regularly. Most often this gets done when your car gets an oil change. With regular tire rotation your tires will last twice as long and who doesn't like that?