Might be able to combine with a cheap jetstar/emirates/qantas/virgin deal to get to NZ, and use this to get back, or to convince a friend/family member in NZ that it's time to come visit!
Limited numbers, you'll need to act fast!
Examples:
Auckland to Melbourne $69
Chch to Melbourne $69
500 seats available on any one way route
Checked luggage/food not included by default.
Go go go!
I am only seeing Christchurch to Brisbane for $79 NZD