freitasm:
Then I look on their website, and they have a fibre plan that costs only $5 more than "wireless broadband". If they want to offer reliability, why not that instead?
People in New Zealand, by and large, are cheap. Price is the only metric they look at. And so wireless broadband gets a foot in in areas where fibre is available. Those who understand the advtanages of fibre (like people here) would not entertain wireless broadband when fibre is also an option.
Edit: I also assume the margin on Wireless Broadband is higher so companies would prefer you to switch too.