DO NOT PAY $600. Negotiate. They will come down, I know, it's what I do all day long. However, I do believe in them. I paid $499 for mine, most likely still made couple hundred on me....and that's ok. MUST have a good dealer with a service manager who is on your side to make it work right. Develop a loyal partnership with your service department....know them on a first name basis. Even if you do most of the routine maintenace yourself, let them do something once in a while. Always go back and see them everytime you are at the dealership. Buy the shop pizza for lunch. At 12,000 miles, I have yet to use the service plan. But, I garantee if I need it, it will pay, and most likely pay for itself. If I never use it, what's $499 over the long run?