How do you think this thread started? Read the first post. Amoebabattles was one of my first redemptions on FMA. I'm not sure if FAD really gives you a choice, because I have yet to see that iTunes GC available. I suppose I could swap an Amazon for an iTunes card, but the social groups on this site are rather poorly inplemented. And I wouldn't know who else to trust.
When FMA first started offering GC's, Amazon sold iTunes cards, IIRC It's too bad they don't anymore. Probably because of the Kindle.
Then again, it only takes 5 bucks, IIRC, to "gift" Itunes credit. I guess the automation these sites have set up (besides GE) precludes them from doing so.