Technofreak:
Are you in Kiwi Saver now? Anyone on Kiwi Saver is already paying twice. If you're not in some sort of super scheme you really need to think about what your retirement fund is going to look like.
Kiwisaver was floated as supplemental to the pension to help address affordability issues. Many people have joined, planned and saved on that basis.
If the plan is now suddenly to pull the rug out from workers again by yanking the pension entirely, then that's a pretty huge breach of the social contract that keeps us all happily and obediently paying tax that funds super for people who get it without question today.
I would need to make a tough decision about whether I can realistically save enough to ever retire in NZ, or whether it's a case of getting somewhere like Australia where I might have an actual chance at it.