As a person who still wishes he could really replace his Fujitsu Stylistic ST-4110, it pains me to note that:

- they're dim (in comparison to an otherwise equivalent display)

- they don't showroom well (because they're dim)

- marketing them is difficult --- not many folks are willing to pay a premium to avoid the need to do the "hipster dance" and shade their screen (or just wait a bit to use their device)

The ideal would be for a retailer to set up a daylight viewing booth in all their spaces (expensive) and then convince folks to test/compare devices in what is essentially a suntan booth (health implications).

I wish that someone would revisit the Lenovo Yogabook which had a secondary e-ink display as keyboard/drawing area/e-ink tablet as a reasonable compromise.

EDIT: I will note that there are (or were?) some such devices available from specialty suppliers for nautical use, or in rugged devices intended for use on construction sites.