Can you expound on this warning?
Honestly I can't really see why I should go to New Zeeland even if they had a great jobmarket: why relocate half-way around the world to a country that as far as I know has no interesting tech companies.
If that's truly what's holding you back, I gather that New Zealand might not be the place for you. I have been told, however, that NZ has other fine qualities having little to do with tech. For instance, the fact that it's half-way around the world, and they talk like those musicians on that HBO show, might be reason enough for me personally.