This may sound a bit hypocritical for a forum devoted to arranger keyboards, but I just feel that this should be put forth. With all of our debates over the pros and cons of each keyboard, the question over which is the "ultimate" high end arranger, etc., I think that there are two important points to bear in mind. First, correct me if I'm wrong, but I'd estimate that 90% or so of the details and nuances that are constantly fussed about (exact quality of sounds, styles, variety, etc.) are only really noticed by one person -- the musician. From what I can tell, most audiences can't tell the difference between a PSR-9000 and a 540 - nor do they care to. Now this obviously isn't to say that the details are not important to the musician, but it's something to keep in mind throughout these discussions. My second point is that when it really comes down to it, the keyboard isn't what makes the music come alive, the musician does. The keyboard may have every feature and trick in the book, but it's nothing more than a tool. A skilled keyboardist will sound great on most any board available today. An unskilled player will not become a virtuoso because he's sitting behing a $3000 arranger. Of course the specs can make some difference, but the real issue is the musician, not the keyboard. Just thought I'd put in my two cents.