Some do indeed. Personally, I'd rather we move as much away from paper as possible to handheld electronic devices that include ways to mark up and manipulate materials being viewed on them and then store that material again inclusive of the changes/markups. Certainly as an ePub I'd love the switch to become more universal but also as a returning student I would much prefer to be carrying a simple tablet of some sort with all of my textbooks on it (even if I had to convert them to PDFs all on my own!)
But the simple matter of fact is that some people prefer the physical object, such as a magazine, and this means that online content can be an alternate but never a replacement for them. And there are legitimate gripes about how much they can be shared, about reselling them, and taking them places where you might not want to have an electronic device, that are never adequately addressed by us proponents of electronic medium, and never will be.
Anyway, that's my point and as a (sometime, small) ePub, it's something I need to recognize as actual, real, and legitimate as an obstacle or I make no headway in helping reduce it as an objection toward electronic medium. My use of clever language to try and redefine the lack of physicality in the delivery of material doesn't make the problem go away, it just makes it appear I am trying to ignore the facts or pretend they don't exist. And that doesn't help anybody.