Digital can also make it more accessible for newcomers. I mean if someone is just getting into comics, they don't want to commit the time or money to hunting down every single issue, or reprint of every issue. Admitted thats where TPB's come in, but look at the economics on that. 15 for an essential book with usually 25 issues roughly in black and white, then subtract the cost of creating the product, and subtract the amount that is profit for the retailer. Marvel is making say 5-10 bucks profit (totally guessing, but that's beside the point). Now they take each of those 25 issues, and offer them (in color mind you) for 99 cents a piece. Boom 25 bucks, pure profit. And TPB's aren't generally known for their collectabilty (at least I've never heard of it). So shifting at least older issues is a great idea. Marvel has done a bit of this with their website, one flat fee gives you access to unlimited reading of comics they've scanned in.
The problem is, none of the digital "subscription" stuff is accessible from the Marvel app. So you have to read them on computer or through your devices web browser. If they would merge the subscription side into the single-issue side, I may actually subscribe.
Also. Why can I get a "subscription" to the print comics for 40-45% off directly through Marvel, but I can't get a subscription to the digital ones - Meaning, I want to subscribe to say, Amazing Spider-Man for the next 12 months...? Even at full price they don't offer subscriptions. If they offered this, maybe 50-60% off for a digital sub where you HAVE to pay 1 year at a time, yes I would go for that. At $3.99/mag for 12 issues that would work out to around $22-24 a sub.