And I have to know you. After getting burned by trying to trade a 27% Mara's for an Annihilus and having some jackass swoop through our trading site in the Kurast Docks and pick up my amulet, I'm not taking any chances.
Oh, also, you have to promise to use them someday. Because when you use a gift card, Best Buy loses. (when you buy a gift card, Best Buy wins. Sadly, they've already won from some of my relatives. But if you can find a use for them, then stick it to the big-box man!)