At this stage of life, money is not even a consideration. I had serious thoughts about buying the SX-900 just so I would learn the newer OS and be able to provide help to others that purchased one and needed help. My wife talked me out of it. She said the new keyboard would just be one more things for the kids to get rid of when I passed.
Don Mason said I could will it to him, but I don't think he has that much patience. Additionally, his friend Dicky has one on order, so he'll soon have one in his hands and provide some insight to others. If anyone wishes to hear the SX-900 put through it's paces, live, by a highly skilled entertainer, just take the next flight to Shreveport and head for Ernest's Restaurant any Friday or Saturday night in November.

Good luck, everyone,
Gary

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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)