[cookie_monsta]

FWIW, many proof readers and editors still prefer to work in hard copy, and there are still some writers out there working on drafts longhand or on old school typewriters.

Aside from the mentioned advantages about annotations, I find that working with hard copy produces a different mindset, almost as if your brain recognises that this is still a draft and everything is subject to reconsideration. Counter-intuitively, words on a screen seem more "set in concrete".

It also seems that the brain works differently when sat in front of a humming monitor as opposed to literally anywhere else in the world which is where you can edit hard copy.

Being that "a fresh set of eyes" is often so valuable in both writing and programming, anything that can get you a fresh perspective is potentially valuable, particularly with such a low buy-in.