Generally speaking we have taxes included in our pricing (often forgotten when doing conversions) and because small market we often get "taken for a ride" as there's limited volume. Not many people actually use the CGA, but if you know about it, it's gold :)
A quick search reveals the Razer costs around $500 USD more in NZ than in the US (converted prices to USD). The MBP 16" is $400 more. Wouldn't part of the reason it costs more be because of this legislation?