Looks like I am in the same boat as most others here. When buying my R6 earlier this year, I checked with GP and their pricing was over $1,000 more than Vickerys price for the same bike at the same time, this was before they advertised their MRSP trade thing I believe. However as far as gear goes, they did great, i bought my jacket, pants, and boots from them and had a buddy do the same due to their service. As far as maintenance or repair, I only have one experience and that was with Coyote, they did a great job and same day which nobody could beat.
Forgot to add this, a couple of years ago when I still had my FZR, GrandPrix pretty much bent over backwards trying to find me a lightbulb for a turn signal. They searched through a drawer full of little light bulbs trying to find a good match, that really impressed me and probably the reason why I bought some of my gear there.