You know....as a matter of fact, as much as I hate to admit it, I do have quite a few old copies still at my dad's house up in the attic. They are kept company by some copies of Mad magazine, and a few vintage Playboys. The real treasures, my collection of "underground comix" (remember those?)have been removed and placed into plastic pages. Once I saw them on Antique Roadshow and heard the crazy amount of money they are worth I couldn't get over there fast enough. For those people that are too young to rmember "underground comix" they were some great ones from the early 70's, such as Zap Comix, Motor City Comix, Fabulous Fury Freak Brothers, Mr Natural, and many, many more.
I'll have to go check those old National Lampoons out and check on the photos.