I live in Asia but I have a US iTunes account for the past two year. As I do not have a US issued credit card, my only means of reloading my iTunes credit is by redeeming gift cards. However, these gift cards are costly, they are being sold at about $25 for a $15 gift card. I tried purchasing the gift card directly on iTunes but my transaction did not go through as I do not have a US credit card.
Does this happen to everyone else outside the US? Would love to know how to go around this little problem (especially since TMA featured some very interesting paid apps!)