The whole point of this thread was to point out that you should do substantially better buying foreign coins (not bills) at coin shops. You should be able to get these at a substantial DISCOUNT to the current exchange rate as posted at places like xe.com. The dealers I've dealt with all said I could return the unused coins with no penalty whatsoever if I didn't spend them all.
So yes, you may be getting close to the current exchange rate with a credit card. But why not buy at a substantial discount?
AKA Bar and Grill - General Discussion of any topics, does not need to be related to metal trading.