Ok, I'll tell you what I REALLY think. It's because arranger keyboards (and to a lesser degree, synths in general) are tech gadgets, not musical instruments (in the traditional sense). Nobody trades in their 25 yr. old Steinway or their 50 yr. old Stradivarius. They actually INCREASE in value and desirability with age. Hey even a cherry '59 'B3' (without even a transpose button) might fetch up to 10 or 15 times that of it's (BEST ) technologically advanced 'clone' (Nord C1/C2).

People have no desire to replace good quality REAL instruments. However, they can't wait to upgrade their computers. Once we stop deluding ourselves into thinking that holding a chord while a computer plays the song is a legitimate art form, then the answer to To The Genesis' question is obvious. JMO.

chas