Its all about how they are marketed thru the last 30 years since there inception...and that has been horrible at best otherwise many more people would be playing them worldwide & be more educated in what they can do,.. ......many more stores would stock all models, arranger companies wouldn't have gone out of business either like Technics, Gem, etc,.., and the live music industry would be using them quite more then it has up to now.
Now with new musical technology being invented every day the chances of arrangers making a comeback resurgence is minimal at best....for arranger KB's sadly it's time has passed.