This is Play It Forward 2012 Xmas addition! If it's successful, we'll start it again next sale.

Rules are simple:

Buy a friend a game. (not the same person that gifted to you, unless you use a 4-pack)
Invite them to the Group.
Post in comments the game purchased/recieved.
They buy another friend a game, invite them to the Group, tell them the Rules.

So on and so forth.

Make sure you get people to join the group for the duration of the Xmas event so we can see how many Played it Forward!