$205 per hour dual is the going rate for 172, in fact, most are more.
If you want to go cheap, try the Waitomo club at Te Kuiti, or come up
to Ardmore, nice 152's at $160 dual.
Flight training is set to get even more expensive next year, due fuel increase, maintainance price rises and instructor shortages.
Kiwis have never had it so good with aircraft prices.
Cheers