Terry,
I know there are quite a few differences, but what I'm saying is just simple things like the modulation wheel. Look at the Casio WK's.. Both those models have 76 keys and modulation wheels, with slight differences.. Take into account those who buy the PSR-550, and love every feature on it, and feel they don't need all those added features of the upper model.. If they want something as small as modulation wheel they have to pay considerably more for the modulation wheel, and then they get a keybaord with more features than they want. Also if someone just wanted the modulation wheel, they couldn't even go up to the PSR-1000... If they wanted a new model they'd have to go all the way up to the PSR-2000 just for a modulation wheel.. If there is curently any keyboard that should at least have that modulation wheel it's the PSR-1000..

Squeak

[This message has been edited by squeak_D (edited 05-27-2003).]