I bought Sam & Max seaosn 3 on steam, played the first episode, loved it so much I went and bought the full Telltale pack from Telltale.com that includes Bone, S&M Seaosns 1, 2, 3, Poker, Puzzle, Wallace and Grommit, Strongbad.
Thing is, I already own Poker Night, Puzzle Agent (this was my third copy_) and now Sam & Max, is there a way to give away those seriels?