As cool as the basic figure boxed set always is for the GI Joe Conventions, many times the Attendee Exclusives are really where it's at. Sure, the Tanks for the Memories set was great, but Starduster and Grand Slam really helped make that set what it is, in my mind. The MARS Attacks set in 2005 was awesome, of course (probably my favorite GI Joe Con Set ever) and yes, the Iron Anvil and Iron Grenadier were incredible, but so were Gung Ho, Dragonsky, and the various Steel Brigade figures that came in the attendee exclusive sets.