Collecting the Devil's Due run is my newest obsession. I have the complete run of America's Elite in single issues but double dipped when I had the chance to pick the paperbacks to cheap. The OCD nerd needed the rest of the paperbacks while I was at it. I already had the Declassified books, Storm Shadow, Arashikage Showdown, and the GI Joe vs Transformers omnibus before this madness started.
I'm missing some books: Master & Apprentice, Special Missions, and Reloaded. Even though I really want those books they didn't complete the entire series. As much as I liked Reloaded, there's only two paperbacks and they didn't finish the last third.
Even though it's not the complete Devil's Due collection, I'm quite happy to own the majority of their continuity. There's a good chunk I haven't read so I look forward to reading this (perhaps after reading the classic Marvel material).