I'm highly skeptical of the claim that printing and distribution costs are not that high. I get that they are not a high part of most publishers margins, but isn't that mainly because they have already invested in the infrastructure necessary to do these things. I would guess at a long timeline for deprecation write offs. This does not make them cheap, by any measure. (Indeed, just try printing a few thousand copies of a book personally, and see how small of a part of your margins this would be.)

Same is similarly true for ebook distribution. It isn't like the infrastructure to do that at scale is free, either. Both in technical of copying the bits around, and in the physical of authors/editors/etc.

However, I fail to see any way in which the advantages do not weigh in on the ebook side heavily.