[51Cards]

Was about to post the same thing. You'll never get 30% on a retail product. In effect it would make everything you "buy with Facebook" 30% more expensive since there isn't that margin there, and that would kill the concept quick.

I also question how wide spread this would be. I mean yes it has the potential to be huge but I purposely don't connect my Facebook account to anyone else (no Login with Facebook for me) because of their shoddy history with privacy. Last thing I'm going to do is attach payment info, esp since I don't play any games in the system. I'm not saying this won't be huge, but I am saying it's not going to be ubiquitous.