The problem is not the car but the people that think they can work on the car (or there lack of knowledge of the cars). There just nuts and bolts, real close and tight nuts and bolts. but nuts none the less. I had a SAI pump failing that cost just over $500 new. I took it apart and greased up everything and put it back in, still works well.
So in the end, its just mechanical parts, many many parts that need grease.