New games retail in stores in New Zealand around $90 to $110.
the New Zealand dollar is about 72 cent US.
I paid $20usd over steam for TF2, thats was a $32nzd charge to my credit card. To buy the TF2 part of the orange box in store (which I don't think you could at that time) was $45-50nzd
Also our local retail is often affecded by the Australia market. i.e. Our release of GTA4 was all of the Australian stock, censored.
New Zealand has a rating system that does allow the full game but in being part of the same economic group with Australia, in certain ways, we just are stuck with what their rules are.
You Aussies need to overthrow your goverment and adopt a Mad Max form of leadership and right these wrongs!!
Do it for us Kiwis, your ANZAC brothers!