What's the best place to buy your foreign exchange? Not, I'm sorry to say, at Auckland International Airport, where Travelex has a monopoly.
It is, of course, very convenient to get some foreign currency at the airport on your way out - so you arrive with usable cash in your pocket - and to change it back on your return ... but you have to pay a price for the convenience.
Consider the experience of Lester Thorley, who converted Kiwi dollars into Samoan tala at the airport Travelex.
"We hadn't been to Samoa for four years, and were surprised to receive only 1.6060 tala per NZ dollar. But it's not exactly a familiar currency and as it was 5.55am and we'd been up since 4am, we weren't really in a mental state to argue."
But in Samoa using ATMs, "we received a conversion rate of 1.8047 and 1.7959. At the lower of these two rates, using Travelex cost us a hit of about $70, not including fees of $10 each for the two transactions."