There are a number of problems for NZ population growth...the appeal of Australia stands out as a sore tooth for a number of reasons. The most bleating obvious ones are:
1. NZ'ers love to hate the Ozzies, so it places a hole in their hearts to know that some of them are going off to the land of milk and honey. The land of persistent job growth and relentless balance of payments surpluses. Quite simply the land of higher incomes, job growth, housing prices rises, oh...and did I mention population growth. The population of NZ (mostly immigration) grew just 13,ooo for the year, even after including the better performances by using a rolling average. Australian immigration is growing 300,000 a year, though it might halve due to changes in government policy.
If this was the only reason to prefer Australia...
2. I would suggest Australia has the better record on crime rates...significantly so..but then I lived in the nicer parts of Australia. There are a lot of yobbos in NZ, a lot of speeding, alcoholism, bored youths, predatory natures, etc.
3. Diversity - There must be somewhere in Australia to suit your tastes. Of course it can all be about the amount of money it takes, and sadly Australian property is overpriced because of highly restrict land zoning regulations. It really is a form of slavery that the Australian govt makes you live in the city for jobs, and subjects you to rip off land prices by restricting land releases. Why? Because it wants you to be a 'good taxpayer' for the Commonwealth...to defend freedom in 'far flung' parts of the British empire. On this point, I am almost convinced Australia is not the place to live. Oh, and how could I forget the most evil organisation in the world after the MGB, the Fed, the IRS...yes, the Australian Tax Office. Its tentacles have been know to reach into a man's pants and pull off his testicles in one foul swoop on his manhood....in the pursuit of money. So you see...the choice is clear. There is no clear place to live until there is a revolution in Australia by taxpayers. I don't see that any time soon.
Don't get me wrong...NZ is a nice place to live. If I couldn't go to Australia, NZ would be a good 2nd choice...but for the lack of job growth, I'd probably not opt for an isolated island on the other side of the world (unless it was as big as Australia). If I was an American, I'd probably opt to migrate to the Mid-West, where the only crime is the stuff that stays in the family. If I was a Brit, I'd probably buy a section in the back-blocks of the UK with a commute to a city.
The other problems with NZ are the rising consumption takes rates which fall on retirees to a large extent, like foreigners. The other problem is the incessant winds which blow all the time.
This might be why I never stay in one country but seem to travel between a few. There is no single one good place in the world....you have to keep travelling or repress or the bad points. Most of you are repressors of course.....morally ambivalent repressors.