I had a Korg MicroArranger and really had a great time with it. Used it many times as a stand-a-long gig keyboard. It loaded just about all the Korg Legacy styles and they provided a lot of options for songs. I also used John Smies Resources for it and that made a huge difference in sound quality. With my Bose L1 Compact it was surprising how good it sounded. I have small hands so the smaller keys were not a problem. I would still be using it today had the mother board not failed. I suspect there will be ample sales of this new one to make it worth Korg's time to produce it.
Deane