This was what I said when I got my hands on and bought the SD1 some years ago. I also loved the keybed and "Jump" feature.
Sadly I sold it too early to get ready for the Audya that did not show up when promissed, and when it did, the one item price was the same as for 1 Tyros and 1 Korg top of the range together.
Rest of the story already told several times .....

SD9 sounds great at videodemos, no doubt, but so do PA4 (and T4/5 in it's "CD'ish" way)