Travel mysteries, part one.

1. How does Whitcoulls in Auckland airport manage to sell any coke for $4.99 when the Burger King opposite it sells refillable cups for $2.10?
2. Is the copy of the Economist's World In 2010 in the hands of the Dutch guy sitting near me, who seems to be making the same trip I am, the same copy I accidentally left at security in Auckland?
3. Why are airports so stingy with offering power points? Surely they can afford to let people charge their laptops and phones.
4.