Well my point was probably a bit premature. On my first visit to Warners Bay Tavern I came across 4 different Harrington beers I'd never seen, and a few other microbreweries' offerings that I had also not seen.
I bought the Harrington's for ~$4.50 a stubby, they were $6 in NZ.
Alcohol in general is certainly cheaper in NZ, but the craft beer market is still ludicrously expensive. It's not widely appreciated, and so not widely available. Outside of your plain Emersons/Monteith's, there's truly not much readily available.
I'm currently in Busselton, WA, and the first pub I've been to has Little Creatures, Bluetongue et al on tap. Whilst not the best beers in their own right, I think it's a good representation of how far ahead the Australian craft beer market is compared to NZ.