This might be one of those situations where things have to move forward imperfectly. First some people get eInk monitors, then OS developers see that there are at least some real users and some concrete reason to believe there's a payoff in supporting them.

Then decent software support will encourage more people to get eInk monitors, and that will encourage OS developers to turn decent software support into good software support.

A similar thing happened with SSDs. At first operating systems weren't TRIM-aware, but people used SSDs anyway. IIRC, first device drivers got support to send the TRIM command, then later filesystems got the ability to send the TRIM command automatically, then flash-oriented filesystems were built and went into wide(r) use.

My worry is that E-Ink Monitors will never reach the "minimum quality" point at which they are adopted by a sufficient number of people to get the ball rolling.

I don't suffer from any medical reason to use one, but, I would absolutely purchase one this second (any pay a lot for it) if it worked well. Unfortunately, what I've seen so far from the Dasung and the Onyx, isn't worth $800. I just hope these companies have enough runway to continue improving the product such that early adopters like myself, will jump in.

What will cause it to be worth $800?

Maybe just setting Windows into one of it’s High Contrast Settings would help[0]. I’m sure MacOS offers a similar feature.

[0]http://www.bing.com/images/search?q=windows+10+high+contrast