Very steep prices. Can buy a decent MacBook Air for the cost of the standalone version. Would have been nice to see them keep the old model around with a reduced price for people less well off.
It also comes with an MPE controller and those are not cheap.
https://dcpianos.com/products/kawai-ca48-the-ultimate-piano-...
You can add beats, different sound libraries, and maybe you can add a microphone looper for ~300 dollars extra.
However, it is disingenuous to compare a groovebox to a digital piano. It's also bold to assume that someone wants or needs 88 keys or even wants piano-like action. It's something different. That's valid. If it isn't for you or me, that's also valid.