I think the flaw in the logic here is the assumption that these cars are going to be on the road a long time and bought and sold by future owners. The reality is these cars are going to the salvage yard way sooner than any MB that came before them. It's a waste for them to arrive at the salvage yard with lots of shiny new parts. The idea that you must always buy expensive new factory parts just accelerates the date of their economic obsolesence.