DragonBelow
Adventurer
I also recommend troll and toad
For the record, that "elsewhere" was the Game Chest in Dallas- an excellent store for finding OoP games. Like the place I mentioned above, they are pretty diligent in their searching.
There is also the occasional game store. If you live anywhere near Kansas City, I would recommend Monty’s. The place is a treasure trove of old games. I was able to complete my spelljammer collection there, my friend nick was able to pick up a bunch of hackmaster stuff, and last time I was there he even had a complete set of alternity books.
With the older adventurers, outside of the full color cover, is there a particular issue with PDF or just not a fan of the format?