For a lot of people cars are less a way to get from point A to point B and more of a status symbol, so they like to drive a new or at least newer car.
Personally I'm with you. I love my car because its exactly enough car for my needs. I bought it new (in 2016) and I never want to sell it. I'd get so much less (or more to the point I can't buy a new car) for the same money I spent on it.