just wondering if there are any here?

this 61 does have the joystick on side
programmable 16 buttons,
better sounds, maybe new chip
expandable RAM
better vocalizer it seems
MAYBE lower price

or MAYBE you definitely need the 76 Keys?

i'd be OK with 61 key, AUDYA5
but may opt for the module AUDYA4 cuz then i could have a 25key AUDYA or an 88-key fully weighted AUDYA