One thing that would help, that comics have gotten away from, are the text boxes that refer readers back to old issues. "Captain America is talking about what happened in Pet Avengers #4!" That sort of thing. Comic books used to be hypertext-ish, in a way. They're not anymore.
I seriously miss the captions. They explain things better and encourage you to buy and read old issues! What's wrong with that? At what point did they do away with that? Like 2004?