'Better' means nothing, i tried to give a focused contribution to the topic of this thread.
While you 'see by yourself', allow me to remember you, that there are several millions of people who bought a Galaxy S3 / Note / Note 2 with a big amoled display capable of doing what I just showed. And the new fooldable (shockproof) amoleds...
Long story short: lots of people who are likely to find redundant to buy a new 6" e-ink, even if they already are used to e-inks. Me included.