Here's my take on it: I wish we could get over print. But nostalgia and marketing systems won't allow it to happen. Yet.
Eventually, it's likely to be a necessity. I get the whole tactile argument, but it's content that excites me, not form, so I don't really care if I'm holding a stack of papers or a tablet, unless the tablet is running out of juice and I don't have a charger, or the sun has gone down and I don't have a lantern to read the book with.
Mostly though, I'm a demented environmentalist and think it's morally irresponsible to continue supporting the manufacture of physical objects to satisfy personal interests. Myself included. I WANT print comics and do buy a lot of them. I need help to stop. Gorging on digital comics certainly helps.
The other main point though, especially as a creator, is INNOVATION. The boundaries of print have been quite firmly explored. Digital is a new frontier. The functionality doesn't come through on hosting sites like Tapastic (though its soundtrack feature is cool), but The Beard is designed specifically as a digital comic, though I made concessions on formatting so that it would be printable (I'm just a writer, so I have to pay my artists still). In the pdf version, it's an enriched document that has hidden hyperlinks serving as footnotes and pathways to extra content as well as music cues and sound effects that you trigger by clicking on certain panels. The trouble has been in finding a widely used PDF reader that works. PDFX Editor is the only one I've found so far that does everything I need it to. Ah, tech problems. I'll solve 'em yet. I want there to be every reason to CHOOSE digital over print eventually, because it's a hard decision to make when you're used to a popular standard.