is it lack of styles to suit what you play? or problems with learning the operating system?
Also do you belong to the Korg Forums?http://www.korgforums.com/forum/phpBB2/viewforum.php?f=61&sid=e99cb2e360b527161c1dd6903732f2a7
Maybe not quite as busy as it was when the PA800 first came out, but there's still members who post.
Demo's for korg are few & far between compared to Yamaha.
If you need some styles, let me know. I've converted the odd one across from yamaha, plus I've got styles from some of the prior model korgs.
Certainly wouldn't mind a psr or a tyros, but I wouldn't swap my korg for one. There again to each his own. Yammies are easiert to play straight off the shelf, but a korg you can make your own.