Plus, I could easily raise the counter argument that if I spend thousands on a machine, it better be reliable without needing to get serviced all the time

So I guess you never wash your expensive clothes? A vehicle is essentially a tool. And if a tool doesn’t get upkeep every once in awhile then it’s going to break. Why would anyone spend some people’s annual income on a tool and not treat it with care and give it proper upkeep so it lasts long enough to be worth spending that much money on?