My siblings paid 80K in taxation advice and ended up living in NZ to best serve their business interests in Australia & NZ. They own half of Queenstown Hill and live an amazing lifestyle of helicopters for skiing, hiking or highland picnics; chefs and winemakers who host their dinner parties with friends in their impressive properties. Irony for me being, they've had a few touch and go medical emergencies and while its great you are better off for tax, you may as well be in Asia for medical care.
Probably not relevant for a pilot though I'd suggest you delve deeper into what may really matter living in NZ. As for the locals, lovely folks, though it s a bit like going to Phuket, where foreigners have the glitter and the locals provide nice services.