I went ahead and ordered one. I dont believe they can legally charge your card more without further authorization if (heh, more like when) they change the price. If it falls through they will likely just cancel the order. Worst case scenario they send you a different card, a GT or vanilla and you have to send it back to them. Well, I'll see what happens. Likely they will cancel the order but hey, its worth a shot.
My bank is pretty hardcore about fraud protection so I feel relatively safe. I've scored a couple times on price mistakes on items listed in ATHD, looking for a hat-trick!
Definitely not good prices on anything else there, hell they even shaft you on shipping, $14 ups ground to CA on the card.