If you plan to use the program to travel around the country to gain a true cultural experience, you would be better off staying in hostels. If you plan to stay in one location, then ‘flatting’- renting a shared flat (apartment), would be more cost effective.
Costs in New Zealand
A room in a shared flat will cost approximately NZ$120+ per week, a two bedroom flat will cost approximately NZ$300 per week, and you will generally need to pay a bond of 4 weeks rent plus the first 2 weeks rent in advance. On average, you will also need approximately NZ$100 per week for food, etc.