I was thinking the other day about packs that I've never seen - either in person at shows or for sale on eBay or other auctions. Here's my list. I'm interested in seeing yours!
21 Tattoos
Battle
Foldees (Topps - 1962)
Funny Monsters/You'll Die Laughing
Hot Rods (Topps 1965 black wrapper)
Love Initials
Mars Attack (does one really exist?)
Mod Generation Stickers
Mod Initial Stickers
Test packs - Rookies, Julia, Crazy TV etc
I think that what we currently see at auctions and at shows should be our guide. If the full boxes ever get released (yes please do!), then we reassess the relative availability. An example of this is Hippie Tattoos which was relatively scarce and now recently showing up in greater numbers. Once these get absorbed by the hobby, the availability can be reassessed.
PS I'm drooling over that full box of Mod Initial Stickers. Anybody have a pack for sale?