You don't need to move to another state, just use another phone. You can't argue that the Honda Civic alternator won't work on your Mercedes, and the part is only made by Mercedes. When you bought the Benz, they locked you in. You can go somewhere else to get service. But guess what, that mechanic will have to purchase the part from the Mercedes supplier. That is true lock in. Same with servicing the on board computer software. You want the updates? Sorry, only available through Mercedes and Mercedes suppliers. Oh sure you can go to Joe Bobs Auto Service, but then HE will have to order from Mercedes or a Mercedes supplier.

OP was right, this model has been around a while.