Do you follow your car dealerships recommendation to service your car at certain miles achieved?

If you have bought your car at a dealership, they send out notices that you need to get a full check up on your car at a certain number of miles. This includes some mundane checks such as water levels, windshield washer level to drive train check.
I don’t do this. It’s very pricey. I have a couple of friends that do, and one just had it done and it cost him 900.00. What are the pros and cons of having this done?
I do get an oil change and tire rotation when my car tells me to. (She’s very bossy about that.)