Very cool. I still have some of my older comics and several Omnibus HC books for the 60's Marvel and DC superheroes. Many of these I use to have, but the value is way out of reach now and naturally if I even had them, I would not want to open and read them. My favorites... Batman, Teen Titans, Captain America, Spider-man, Thor, Sgt Fury and Conan the Barbarian. Of course I had a lot more (and still do). Favorite artists... Jack "The King" Kirby, Steranko, Barry Smith, Bucema and Jusko.
Been to a few Cons, but never dressed up.