RomeoAlpha, Mike is correct, it takes more than a bit of skiing to feed a 212 all year, Skiing is mainly an off-season fill in for the Canadian medium fleet.
Also...from what I understand...the Ski Ops are limited in NZ, they go great guns when the Weather is good maybe up to 4-6 groups (of 4) per aircraft, but must shut down during storms. The local guides have told me that there is no bad weather skiing below-tree-line, and from what I have seen at Mt Cook, I believe them !