These have been so expensive at the Supermarkets, and there have been no promos for quite a while, so I pulled the trigger on 12 boxes today, it ended at $100 with free shipping. Coupon code is automatically applied at checkout, you need an account to check it out.
Update - PNS North Island - $9.89
Don't know about up north but they're currently $9.39/box at New World in the South Island