I marked myself "complete" though I don't have the AE pocket edition, the early "Signs & Portents" articles (issues 1 through 25) that weren't reprinted in the
Compendium (though I'm only really sorry about not having Vincent's Tortage write-up :x ) and the map that was supposed to come with the GM's screen.
Also, having the 2nd edition
Secrets of Skelos I, of course, didn't bother tracking down the
Scrolls of Skelos from 1st edition. Oh, and I missed out on the nice, shiny replacement map for
Shadizar: City of Wickedness (I just have the little downloadable version

).
While we're on the subject of supplements, though, am I right in thinking that
The Black Stones of Kovag-Re and
The Coming of Hanuman were only ever available as PDFs? I have them as such, as well as the AE core book, but was wondering if they'd ever been available in hardcopy.