the dual display was a killer for the BK9 turned alot of people off..although it does have some very nice features.
Personally i like the idea of 2 screens, but these where to small and to low quallity...
I would love to see a high end arranger with 2 times a 7" touchscreen and 9 sliders and 8 knobs in between... ( and then 16 pads to the left )
Sometimes i dream at night from a Roland arranger workstation that has all their technollogy onboard....(acb, Vsynth, integra sounds, jupiter80 live sets, pha50 keybed, bk9 styles, fa arp and samples, ea7 sampler and much much more).
Sadly we all know this is never going to happen... However, Casio Mz-x series has showed us that a combination of arranger and synth workstation will work for many non typical arranger genres.