On a related note... I bought GI Joe #21, the silent issue!
While picking up my comics, the comic shop had several boxes of old comics. One of the customers traded in his collection for store credit. As soon as I saw some GI Joe comics, I dug right in. And just like finding the Golden Ticket, I nearly crapped my pants finding part of the greenish black cover. It was in pretty good condition too! The clerk knew what he was doing, he checked Overstreet for the price so I paid $25 for it. Still worth it though!
I've read a reprint before... but I've always wanted the real deal.
Of course, the crappy thing was that as soon as I came home, I saw some cheaper prices on eBay. Oh well.... live & learn.