I generally will not pay more than $1.99 for a single issue, and even then it has to be something I really want. However, if I can get a digital book for $.99, then I'm willing to snag a bunch. I know that debate rages about the price of digital books, and I don't pretend to know all of the costs involved with digital, but I do know what the value is to me.
If I shell out $3.99 for a physical comic book, I own something. If I resell it I'm probably not going to make a profit, but I am probably able to get something for it. I can't do that with a digital book. What happens if the company I bought the digital book from goes under, and I suffer a data loss? I'm now out that money, whereas with a physical book once I have it I have it, barring something like a basement flood or fire I'm not going to lose them; and even if I do, I have insurance on my physical books, you can't do that with digital.
That is why I will not spend $3.99 on a digital comic book that takes me 5 minutes to read. However, there are times when I am willing to spend that much or more, and I wish that more of these collections existed.
While browsing around on the Comixology app on my tablet, I happened across an X-Men/Spider-Man digital pack for $5.99 that was over 150 pages, containing team-ups of Marvel's merry mutants and their friendly neighborhood arachnid from various comics over the years. Now this is exactly the kind of initiative that can be done easily in the digital comics world. I mean, you made the money on the content the first time around, why not offer it in a bundle like this to entice readers to try out something they haven't read before? In fact, this was created to promote a (then) upcoming crossover between the two teams, that's great marketing!
I would love to see more stuff like this...why not put Bloodties together in a digital pack for $5 as marketing for the upcoming Avengers vs X-Men? Or in the lead up to the Galactus-Asgard
snorefest war put out a bundle of cosmic Thor stories, such as his battles against the Celestials, Ego the Living Planet, etc. Marvel has made their money already with these stories, so why not use them as gravy to marketing upcoming events?
Really my only beefs about the X-Men/Spider-Man bundle was one of the stories within ended on a cliffhanger and the resolution wasn't included. My other beef was that I already owned 4 of the issues in the pack, and there was no way to read what issues were included before purchasing. Fix that little mistake and I'd be very satisfied.
Feel free to steal this idea Marvel, DC, any comic company that wants my money!