I have been collecting autos for a while now, but I never really thought to collect "groups" of players. I used to live in Seattle, and with Felix just throwing a perfect game, I decided to look more into the Perfect game, I came to the realization that since 1950, there have been 18 Perfect Games, and I have 13 of them, which I think is pretty darn good. To brag, I have linked to my collection.
https://www.dropbox.com/sh/te2r8n6ytb79hda/fadR3DMJbp
If you have any of the 5 I dont have (Witt, Halladay, Braden, Cain, Humber), send me a PM