Not everyone.
1. I have NEVER had the local dealer work on my Lotus. I took it over a hundred miles way.
2. As soon as you do anything to the car, modifications... or if you autocross it, you may not be covered. An extended warranty works if you want to keep the car stock and not compete in it. But some would rather have the freedom.
3. I had the alarm module, dash cluster and more worked on. But not at the dealer.
