You have some very talented friends..!
I am VERY happy with the BK-9's organ section. I honestly think, at least for live use, it compares very well with the Nord's and other TOTL Hammond clones, and is actually about the same price as the Nord with the drawbars, and oh, by the way, throws in an entire state of the art arranger as well!
I am still in the process of migrating my entire solo setup to the BK-9 (rather slowly, as I have a six day a week live band gig at the moment!) so I haven't yet started in on the audio loops feature. Can't wait to see what I can do with it... This gives me much inspiration.
These are definitely some of the most high quality demos played live on an arranger out there. No hokey old stuff, just high quality modern stuff the younger generations can believe in..! I think Roland are on the right track here. Let other manufacturers go after the oldies and Broadway music type players, and build arranger support for the younger player. That will pay off in the end, I am sure.
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An arranger is just a tool. What matters is what you build with it..!