Both keyboards have more features than anyone can imagine. As for the keyfeel, I can't tell the difference between the two, but I'm old so it doesn't matter to me one way or another.
The Tyros has a few features that the 3000 does not, however, it does not have onboard speakers, which I feel is important for monitoring purposes.
As for the transition from 76 to 61 keys, I never owned a 76 key arranger, but I have played both and found no difference in addapting to either.
I like the 3000 so much that I own two of them. I really love everything it will do, and nearly everyone that on this and other forums that has purchased one feels the same way.
Good Luck,
Gary
_________________________
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.)