I love the insults from the Germans...
Yes, my mistake, 40 pieces, not 40 Euros. 29 Euros, post paid. That's nearly $38 and still quite expensive.
Also, another mistake--after looking closely, it appears as if the clamp is not painted black, but black oxide finish.
With all the complaints directed towards MB about parts prices, this still is a simple part, and quite costly. I would suggest that rising parts price complaints should not be limited to Mercedes-Benz.