That is a lot of money for a receiver, but if you have the dough, what the heck.
I've owned 2 different 150's for about 5 years now and have been very happy with their performance. Most people don't calibrate or place the 150 correctly, and then blame the sound on the speakers for some reason. In reality, the best center is an identical model as the L/R, however, this may not always be possible.
Can't help on definitive comparisons, but I did audition B&W's and thought my m60's at the time were better than B&W 703's and half the price. The m80's are probably near the 800 series.
