I cannot for the life of me understand why someone would consider the SD7 over the SD9. Have no idea about the difference in price though - maybe you consider taking over DonM's unit and that might clarify things.
The SD9 has enough features to keep someone with just a little creativity busy for a very long time. My Audya is eight years old, yet to this day I still tamper almost daily with new styles for it, despite the lack of tools to do so.
Yamaha is awesome and much more exciting (to me at least), but I have to admit that somehow the sounds of the various instruments coming out of any Ketron unit are just much more seperated and clear than anything else - I do not know how they accomplish this. For easy, first take amazing recordings, they are hard to beat.
DNJ, I can see that your mind is made up and I can understand why. Now take some good advice - go for the SD9 instead. It might cost you more right now, but you will be glad you did in the end. Plus it will save you the funds for a new Genos in the long run as you will have more than enough to keep yourself occupied.
Henni, that is easy to answer.. Why not the SD9? Maybe they want on board speakers.. maybe they only want 61 keys.. maybe they want the 46 RAM voices( sound better than the other voices), that are apparently not on the SD9..
Personally I would want the SD9 because , speakers don't matter to me, and 76 keys are a must have..
And the best reason for the SD7.... "let's make a deal"..