Good Lord! 30 megs to just the piano.... Can you imagine what that would sound like? I agree that it would be nice to see all the acoustic instruments at the level of "sweet", "cool", or "live". However, that keyboard would need some MASSIVE DSP power, especially in the sequencing department. Having all those cool, live and sweet voices would utilize a lot of DSP resources. They'll need to make a keyboard that is capable of using multiple (and I mean a lot) insert effects at the same time.. Example running say 5 insert effects in one sequence without compromising sound quality...

Squeak
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GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.