Definitely an upgrade from a PSR-3000 or S900, but, I'm debating if it is a big enough jump from an S910, as the latter was what the S900 should have been and was a really well conceived and produced arranger (my opinion, of course).

If'n the Vocal Harmonizer 2 isn't a big priority, and 25 Audio Drum styles (and having to buy more) isn't enough to light your fire, the S910 is still an extremely useful arranger (and might be had cheaper now that S950 is out).

I had an S910 for quite some time, and I really liked it a lot...great and totally useful SA Voices (they seemed to have made the best choices), plenty of styles available for it, and easy peasy Audio Recording (Wav) via Flash Drive; plus it plays MP3's, and it has the same keybed as the S950.

It also has less toys than the S950, but, it is up to the user to decide whether or not they would actually miss them at all. I wouldn't. I could gig with it anywhere I would/could use a Tyros3/4.

I think you are correct about the PSR-3000 being the best selling Yamaha MOTL arranger, although I think the S910 was nipping at it's heels, and was only held back by the unavailability of screens due to flood damage at the factory that made them...in spite of that, a lot were sold as it seemed to cover a lot of important arranger bases and was very popular at clinics/demos. I'll probably find out if it did exceed the 3K, if they let the info drift down to an ordinary clinician.

Larry, bottom line for me....if I hadn't bought my Tyros4, I'd have (and be keeping) an S910.

Ian