It's not that they've "chosen not to repeat it" -- the gestation period for a Graphic Novel, like a prose novel, is fairly long (particularly compared to an ongoing monthly), and it can be difficult to capitalize on an unexpected success without some delay.

(As I recall, DC never did all that many original Graphic Novels, anyway -- one, maybe two a year, most years, before recently. Might be they're a difficult fit for a publisher of periodicals.)

By the way, it's worth reading further down into the comments on that page, where (once you wade through the usual comments nonsense) Brian Hibbs gets into some detail about how poorly these types of books seem to do

In The Back Of Beyond: My photography blog. Everything seen through the camera of my iPhone.
Last Edited By: Fin Fang Foom Aug 26 11 4:02 PM. Edited 1 times.