Sun,
It is truly a compliment to Casio that these same musicians even put a Casio tones into a tryos2 comparable area to a board which costs 1000's of dollars more.
The WK3200/3700 is a remarkable board and boasts some remarkable tones, styles and functions for the price. I have the WK-3700 and love it. I gave up my PSR2000 for the ease of using the WK3500 and I do not miss the PSR. I do not use the WK3500 anymore because the WK3700 in my opinion has superior tones and styles on it.
Of course, if I were a professional, I would be looking for the best of the best, as well as having many boards available to use to make money. I am happy that it is my hobby and not my living.
When you getting your new WK?
-Linda