My guess is that the final software for this thing is not finished yet - including styles, sounds, os and so on.

As for the prices, the M3 is a lot cheaper than the PA2X Pro - even the PA800, so I guess it is no big suprise that the PA3X costs more than the KRONOS. Actually the big suprise is that the KRONOS is that cheap, that thing is going to get a big market share - unless it has some major issues.