I never realized the severity of the underlying problem with the current omnibus format until recently. I have mentioned in other threads how much I love omnibus collections because it compiles all comic book issues in publication order within a certain page count. I have also mentioned how disappointed I was that the Detective Comics Before Batman Omnibus was cancelled. While I mentioned this in that thread, the full impact just dawned on me (or at least I believe so).
Using the Green Lantern Silver Age Omnibus Volume Two as reference, the omnibus focuses on Green Lantern, but also includes an issue each featuring Zatanna and Guy Gardner. So, if either of them received their own omnibus, that would mean at least one duplicate issue for a separate omnibus.
If the publishers for the omnibus run released the Detective Comics Before Batman omnibus, then it (like I mentioned before) would have opened the door to collect based on series instead of character. By doing so, it would create a sense of nostalgia for those who want to experience what readers experienced when it was first released, as well as ensure there is no character/issue overlap.
What are your thoughts? Do you notice any problems with the omnibus format?