Buttons sliders and additional pedal inputs are probably the most expensive things to add to an existing model other than a much larger display. Software upgrades and sounds/styles are a pretty easy add, but those things need a case remodel and additional circuitry to translate the inputs to digital commands.

I think every wishlist should be accompanied by a dollar figure we’d be willing to pay for them! That might help manufacturers decide on whether to take them seriously 😂🎹💵
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An arranger is just a tool. What matters is what you build with it..!