Originally Posted by
Majuki
I was also thinking about those who prefer the rewards on their home country cards. If your card doesn't have a foreign transaction fee, it wouldn't make any different about which card you used for the transaction assuming DCC wasn't a concern.
Even if there is no foreign transaction fee, the CC companies make a good deal on the exchange rate applied. If you get paid (and mostly spend) in currency A, but your credit card runs in currency B, you're losing out twice.