csnow,

I like your logic.

I only buy genuine MB parts when I buy them.

The mechanic I have been using (very small shop) charges me full retail for MB parts and I feel that is sometimes excessive, especially when I find out what I could have bought them for on the net. He certainly has a right to do so, I equally have a right to question and pursue options. It gets down to a business decision on both our parts. I am also a great long term customer with two cars that need attention.