They're also switching for a massive cost reduction, in addition to the environmental benefits (which aren't top of many corporations minds, despite what they might say

).
That depends again on you definition of how you use it. I bring my magazine to a friends house to play, I don't have a laptop (at least one that I can put non-work material on) so for me, I find more use out of a hard copy...
Also, when we play the lights are usually dim, or by candlelight, and having a bright monitor on casting it's glow would break the mood. If I need to reference a rule from Dragon I annotate it on my sheet.