Benjip: Could this be a sign that Vodafone will soon be selling outright?
https://www.vodafone.co.nz/iphone5/buy/
You can now purchase on a Smart plan (not just Smart Data), including terms of only 1 month.
So if you go on the cheapest Smart plan ($45 monthly), you can just buy the phone for its normal retail value and then cancel the plan shortly thereafter.
Am currently on hold to their online sales team to confirm this.
Let us know!