Squiggle, even though you were charged the maximun for the MOT, the important thing is the service you get. It's similar to my new computer. I probably could have got it cheaper online (and the shop owner was open about that), but if I had, the little problem I had last week would have been much more time consuming to resolve.
Oops, I misread your post, El. I thought it was a range of £54 to £85.