OK. I played almost all of them arrangers since the Roland E series, Korg S1, Yamaha PS8000 and Solton (Ketron) MS100. I use arrangers for my solo gigs, in the studio to produce CDs, and in 2 differnet groups (wedding/dance/folk) both using 2 musicians using arranger keyboards, live drums, live gtr at minimum.

I would suggest the following marketing strategy for Ketron:
Market the Audya as your flagship at competition price; although you have to recuper R&D expenses, work on quantity so you can gain market share in the arranger and synth areas. That will put your name out there in the real musicians and DJs community. Brand recognition can only successful if users do use the product; cannot be virtual.
Market a lighter USABLE keyboard to address the needs of the musicians that do not want the added weight and feature. That means 63 keys, with speakers (pointing out to the public) or no speakers. Leave the MP3 player - NO built in MidiJay, No live guitar or bass styles. One or two USB and a decent harmonizer that can be output to a jack. Price that around 1800 and watch you name go out there with the big ones. Here in the States we mostly are acclimed to local big name performers. You would need to put some of those keys in their hands...and you will be gold...