One nice thing about ebooks, is that I have found I can fit up to a 7" tablet into a cargo pocket. So if I'm in transit or simply expecting to be in a waiting room or otherwise pretty certain to be killing time?
Much less weight to carry around when there are a couple of new books stashed "in my pocket".
Now, if I want to follow a double-spread wiring
diagram across two full size pages....I'll take print for that, every time. (Big screens are all well and good, but hard to carry next to balky machines.)