I was speaking to an Australian today...if you read this....sorry for cutting you off. I was tinkering around with Google at the time.
Anyway, there are a great number of Australians showing interest in NZ. I understand the appeal, but I must make the point that you don't know the place until you live here. I have lived here two years, and my advice is....do your research. Commonsense I know. There are things you will need to know. I think for most people the Queenstown region offers the greatest appeal even if you only buy an investment property here. The appeal might wear off if you experience a winter here....but then some of you like the snow.
I personally believe Queenstown airport will be used for domestic flights in future, and that there will be a centralised airport built around Gore to service Dunedin, Invercargill, Wanaka and Queenstown. These three centres are a significant distance from Christchurch, so they need a new airport. Queenstown is 6.5 hours from Christchurch. This area has a lot of appeal. The people here are more international, the shops and service are better. The rest of NZ (apart from Auckland) is held in a cultural vortex. Progressive minds leave....retirees enter and keep to themselves. Its a beautiful country...but like Australia it is dominated by idiots. I prefer to live in Japan where they are all saints because I don't understand them. You can however etch out your own existence here. There are plenty of bars, restaurants, walks, rides to provide a superficial and amusement-filled life. The infrequent gratuity goes a long way... and it will sustain you for a week of solitude. Sounds like paradise to me. :)