Here's an interesting page:
It shows the price of Windows XP in various countries adjusted for average income of people in that country. According to this, the NZ price translates to $1508. Ouch.
Looking at Dick Smiths, I'd have to pay $300 for an *upgrade*. I remember when I bought the upgrade for 98, and it was only $100. This is why if I ever upgrade, I'm more likely to go with Linux.