I never carried collision or comprehensive insurance, having the opinion that dealing with insurance is always a pain in the ass. The insurance premium is simply a markup on the expected value of what the insurance company would pay out. My "inner mathematician" couldn't permit it.
Because of this, my total cost of ownership of cars was really low. I piled all the money I saved into investing, and came out far ahead.
I sold my last car when I retired. Now, I walk everywhere: to the supermarket, to the park, to the gym, to restaurants, to the downtown bars. I'm so glad not to own a car.