The manufacturing cost is astronomical, these things are typically handmade from 4 smaller screens (which are already expensive) because there's not enough dema

The manufacturing cost is astronomical, these things are typically handmade from 4 smaller screens (which are already expensive) because there's not enough demand to automate the production process. Everyone wants a giant $30 e-ink screen, but realistically they'll never be as cheap as an LCD of the same size and nobody's willing to pay even that price.