Well, yes I heard W124 is an "over engineered" car. But with this new "gadgets/features" era we cannot expect that kind of products from any thing. All are made from short term use. This is not only for cars I guess.
But do you guys think in W211 E240 is better than E200 Kompressor ? 'cos I noticed unlike E200 there' re handful E240' s available, so it might not easy to find good condition E240.