How about new Wacky Packages coffee table books or encyclopedias, where each sticker is featured on it's own page? It could have a clear image of the sticker (like the Abrams books), a photo of the real product that it's based on, and a sidebar of facts about the sticker. The facts would include when the sticker made it's first appearance, how many times it was reprinted and what series, and little known facts (if any). An included price guide wouldn't make sense because prices always fluctuate.
I know Greg's site accomplishes all of this already, but this would be cool to have a book series that is a step above the Abrams books, AND would complete the original 16 series, plus the die-cuts, Wacky Ads, The Irish Set, and more.