Just a note to Don Mason and Blueszplayer:
I believe Yamaha owns Korg. And if this is
still so, Korg may soon follow Yamaha in this
new crappy policy.
My two cents: I was very close to buying a
Yamaha PSR-550, and one of it's best attributes was the wealth of free PSR styles available on the web. Yamaha has now changed
my mind.