FWIW, I think the commentary around pricing is totally valid. Ergo keyboards are absurdly expensive; not everyone can drop the necessary 2 to 400 USD to acquire one of these. I don't know the economics but I'm sure part of it is driven by demand; there's a lot less people concerned with ergonomics than there should be, so no one's really incentivized to figure out how to mass produce these.

I would love it when an entry level ergo keyboard could be had for under 50.