James, 
Thanks for your explanation here. I sometimes don’t get really “clear” answers to my questions from Korg about their keyboards. I read what you wrote about the M3, so I’m still just as enthused about it, but, bottom line, I’m mega-enthusiastic about the Oasys. After reading this whole page, I can see it wasn’t my imagination when I thought it sounded better than anything on the market. Plus, it’s one beautiful instrument!  
http://www.eastcoastmusic.com/dptkey.htm    http://www.korg.com/oasys  Unfortunately, I then read these messages here that knocked me for a loop. Yes, you can still buy them, but I guess you‘ll be stuck for support!  
http://www.karma-lab.com/forum/showthread.php?threadid=14642  P.S. I Googled the Oasys and found this among many others.
$1500????   
http://www.adoos.in/post/6698548/sell_brand_new_korg_oasys_88_88key_workstation    http://www.sweetwater.com/feature/korg/?gclid=CM6BreKTjpwCFU1M5Qodq19jaA  Lucky