ah... but what the media doesn't tell you is about the Kiwis that come back home... after a year or two or ten. They go to Oz because of the salaries yes... but they always hanker for home, and once they've had their "OE" (Overseas Experience), they often come back... At least the older ones do.
I also think the young'uns want to get their OZ quals, so they will be more acceptable worldwide.
I've heard a lot of talk about "getting your OE". I think it's something of them becoming aware that they are on this island and don't know much about the rest of the world, so they go for their "OE" which is usually Oz, because of the employment agreement between OZ and NZ, and then come back with a better world view.
But they're not leaving because there's anything "wrong" with this country though... as far as I know