Well thank you I am glad someone has said that! You buy a $50k car for $10k used and expect it to cost the same to keep going as a $10k Toyota?
A MB will cost much more to keep going then a cheaper car, they are complex, and use expensive non common parts.
Thats why I don't see why people complain about the S600's. They cost over $130K+ new. People who buy those kinds of cars new don't lose sleep over dropping $10k on a repair. If you buy a $100k+ car even if you bought it for $20k 9 years down the road, you are still buying something that was over $100k new. So it will eat parts like a $100k car.