Actually I'm saying that even the most ardent player of these sorts of games only plays a few of them at any one time. If Farmville is capturing $n net per pla

Actually I'm saying that even the most ardent player of these sorts of games only plays a few of them at any one time. If Farmville is capturing $n net per player, but a new game is capturing $n x 1.25 net per player, your better off killing Farmville, if you think enough Farmville players would then switch. I don't know if this is the case, but that is what I meant by "opportunity cost."