Oil change is maintenance not service. But ok, let’s include that. It’s done at the same time as rotating tires, so it only adds few extra bucks of revenue for dealers (yes, you can rotate yourself/at other places, same as you can do oil change).

Transmission fluid for modern cars lasts about 100k miles. So you’ll do it maybe once, unlikely at your dealer as you won’t pay dealer tax for an old beater.

Exactly the same for timing belt and spark plugs.

Drive trains aren’t money makers for dealers for a long time.

Timing belt is the only expensive thing on that list (because of labor) and very few American market vehicles use timing belts anymore. The market has gone almost entirely to timing chains these days.

We’re back to timing chains? I remember we used to have them back in the old days.