I posted once in the past looking for a source for wiper blades for my
2004 E320 wagon.  I commented that it cost $99 for two front, and one
back blade.  The back one is still "Bosch" or other after market
compatible, so it was cheap, most of the cost was for the "proprietary"
"special" blades that they use.

Well since my car was in the shop the other day, I drove a c240 wagon.  
It too has the newer style blades.

Yes, Benz costs a lot to start with... yes the blades are good... but it
is not only the price factor.  I don't like the fact that I now cannot
buy my blades conveniently at the local Pep Boys or other places if i
see the need (like in a snow storm when they are streaking)

Some manufacturer has to step up and fill this need... no?

Anyone driving a 2004 and newer MB will now need to buy blades at $44
each at  dealers only!