There’s no money in selling cars anymore, it’s the service departments and parts departments that rake it in.
Ditto that. I have an aging sporty car. At about 10 years old and ~70k miles I needed new brakes. The dealer service rep quoted ~$5K to replace all 4 high performance brakes. Third party high performance brakes are about half of that. A few years earlier the dealership was bought out. Within a few months the new service rep said I needed "clutch work". I had the master cylinder replaced under warranty a few years before even though I had no problems. I declined the "repair" and 30K miles later the clutch still works like a charm.