Using a Mobius e-Ink device, a bigger issue is the ghosting. The discussion of RLCD with up to 60 fps refresh is interesting.
For console work, the ghosting is acceptable. For full-screen GUI, it would likely become distracting if windows are moved frequently or contain animated graphics. For reading text, the quality of e-Ink displays is excellent. And outdoor visibility is incorrectly discounted in the article.
As a standalone display, such as you describe, e-Ink should be quite well suited.
For console work, the ghosting is acceptable. For full-screen GUI, it would likely become distracting if windows are moved frequently or contain animated graphics. For reading text, the quality of e-Ink displays is excellent. And outdoor visibility is incorrectly discounted in the article.
As a standalone display, such as you describe, e-Ink should be quite well suited.