I keep telling myself to stop lusting over gear and just start making music, but…
EDIT: Saw that it’s pretty much a fixed-key device, which makes it much less appealing. Still pretty damn cool, though.
He explains it quite well:
Could mount a guitar pickup under the tines of a kalimba and get much the same effects.
Actually you can change the keys up so much you can do microtonal scales on it, but at the end of the day its a metallaphone so not likely to ever be the only piece of gear you'd want to use, you'd want to mix this with other gear to make a full sound.
GAS (Gear Acquisition Syndrome = buying stuff you don't really need is a serious problem in the synth/eurorack community.