Picked up this at my local BWS.
Online: discount applies in cart.
Usually $19 for 1x 4 pack, so pretty close to half price. 355mL cans is good too as they often sell ginger beer in 330mL cans.
Have yet to try this brand, but seems to rate pretty well.
Absolute day for it in Sydney too.
I find them all too sweet. I wish they would make a ginger beer with just a 1/2 teaspoon of sugar and that's it.