It seems like, with the dearth of decent hiphop and rap styles and sounds on current arrangers, the MM sounds like a decent $600 add-on to a real arranger, as we are not going to see this technology on a full arranger for probably a long time (not too much call for DMX at the nursing home!)

One can only hope that Yamaha make a table-top version soon (like they did with the DJX series) and I won't have to lug around two keyboards.....