I think to get a whole new user base would be those that use arranger keyboards, there would have to be a large market for those that want real instruments but don't want to pay $5000 for an arranger keyboard with real instruments.
Real Time Arranging

A decent laptop or something like this could be used in a live situation, look how small these are:
HP ELITEDESK 800 G2 mini i5 6500T 8GB RAM 256GB SSD Win 10 Micro PC WIFI
I got one as a spare PC for $100.

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