The 210's are now coming into the good deal range. I think it's easier to justify keeping my 210, since it compares a little better than the 124 did against the new cars )e.g. airbags everywhere, actually having a glovebox, 5 speed tranny). It doesn't look as nice, and nothing will ever match the smoothness of the 104 6-cylinder, but hey, a 430 V8 ain't bad either.
Regarding the engineering-bashing, feel free. Mercedes needs more of that. They should probably only give their employees cars with 100K+ miles on them so they can feel the results of their own complacency, instead they only get brand new ones that they trade in after a year.
I did like the looks of the 124 more, though.