I dont think its just the MP3 function, its all of the other finctions as well along with the increased ram for sampling, and a semi weighted board with what looks to be a fabulous action. Dont get me wrong I undertand this a very expensive board, and I wonder why it seems that Arrangers are much more expensive than top of the line synth music stations. Perhaps its the r&d that goes into them,

mmmmm if Ketron could have got this board around $4500 aus, and indeed firm pricing has not come through yet, i beleive that would worry both Yamaha and Korg to a huge degree. One thing I do know is that my work with the ketron SD3 has shown me that the styles are fantastic they have the real feel of the Korg with better sounding Bass and Drums, along with the smooth tight yamaha feel, so come on Kets, throw the cat in amoungst the pidgeons, and we all will benefit in the end