Originally Posted by
bmvaughn
You could always hit a local bank branch before catching your flight

True, but some of us still bank at local non-mega banks and credit unions without branches all of the country that offer a higher level of service and higher interest rates than the mega-banks. Thus those without a branch in the port city, before flying out, would have to deal with the hassle of probably paying a fee to exchange the cash into a cashiers or travelers check.