I am pretty sure some people buy physical magazines. Heck, I might be one of them if they had one. But mostly, I really don't want gaming content to be stuck in some kind of crazy proprietary thing. I want a working download I can keep and continue using in the future, or I'm not going to use it in my games, because if it goes away I'll be screwed, and I have zero confidence in WotC not to break old online content.