My English edition is five paperbacks, but these paperbacks run at about a thousand pages each. A 1000-page paperback is a major hassle to read (how do you comfortably hold it?) or carry around, and they seem to get damaged pretty quickly (the spine is a mess by the time you’ve finished reading). I’d prefer a larger number of thinner volumes.
That's the problem: somehow nobody sells a larger number of thinner volumes. You just get a larger number of books, each somehow being heavier than the original English volume.
Hangul was intentionally created to be the simplest script in the world to learn.
It's also reasonably dense, up to 3 letters can be packed in one square, compared to one and a half in latin.