It would be hard to justify an upgrade if you already own an S900 in my opinion. Yamaha is a master of mimicking a previous model and giving the new one just enough add-on's in the hopes that the majority of PSR-S900 owners will indeed upgrade to the S910. Brilliance in the mind of Yamaha's way of thinking. Madness to those who will be debating on whether to upgrade from an S900 to an S910. Yamaha won't be sweating at all, nevertheless, the beads of sweat are already starting to develop on the foreheads of S900 owners if you ask me.

PS: I can help alleviate the angst for all of you S900 owners if you don't mind me giving you a little bit of advice. >> Everyone of you S900 owners should quit biting your nails and just get an S910. No more sweat to worry about on the forehead, no more biting the nails, no more constipation, no more deliberating.. just go out and get one, or in the case of Larry - two! And you're lives will all be back to serenity and calm again. Until the PSR-S920 comes out in a year or two, that is.

All the best,
Mike