In this case, I think "no distractions" is the goal. It's running on an ESP32 microcontroller, not even a full-blown SBC computer like a Raspberry Pi. It's probably a good choice for such a device but I also don't feel terribly blown away by the price. But, thinking about it, it is a mechanical keyboard with a display that runs about $90, so, not an unfair price, but, certainly not low-cost.
Compared to the AlphaSmart? Their last model launched at over $400 if you adjust for inflation, the only reason they’re cheap now is that schools bought them en masse to teach typing. Niche writing tools are unfortunately expensive unless economies of scale get involved
Oh I think those are still around, usually chromebooks. As long as you set your expectations to the price point they can work,but that’s not really who this is targeted for