I guess so, but it is only a guess as it all depends on where the garage is.
The nearest indy to us is in Sidcup. I've not used for him for years but he was
a lot
more expensive than a general mechanic, i used to have the oil and filter (I purchased genuine MB oil/filter/washers) changed on my gle (previous 8 years of service on my car from
new was by MB - the cars been over-serviced as its just done on 24k miles)
But you have a point and I guess they have to pay their mechanics a bit more as well. Our local MB garge is chaging about 220 an hour labour and that was about 14/16 months ago.