A mistake perhaps people make is that they expect comics to satisfy the same demands of fiction that other forms of reading material do. As a product of the nineteenth and twentieth centuries it must needs have an equivalent to the kind of book you'd take hot air ballooning, or an airport novel.
Disregarding any discussion on the relative worth of different media, our discussion thusfar has highlighted the degree to which certain stories, or the telling of certain stories, differs across platforms. I can appreciate the criticism of comic books being dominated by superheroes to such a degree that walking into a comic store is sometimes like looking through a roadhouse video selection - where the choice is Action or Thriller with some mainstream Drama as a sop. The only way to break this down, of course, is for a wider readership to start reading some comics (as they do in Japan) along with their Dan Brown, and for fanboys to vary their diet with the current variety available.