Hello all. I have been away for some time and would like to get back in the groove and could use some advise.

I have been using a Yamaha PSR-740 for a while now (yes, still!) and am very comfortable using it. Couple years back I bought a PSR-3000 used for about $1k and haven't used it, as it was much different from the 740 and just didn't have the time to learn it. Now, I would like to make the move forward away from my 740, and am debating if I should keep the 3000 and just learn it or sell it for a little loss and upgrade to a S910 or something else?

For those that have used a 3000 & a S900/910, how similar are they from a learning to use standpoint? Also, is there any noticeable sound improvement?

Any feedback is greatly appreciated.

Regard,
Nick