Saw this at my local Coles (Williamstown in VIC).
Quite a few slabs of the coke classic and no sugar varieties.
The "special" 18-packs include a beach towel "worth" $20 (it says on the box).
Works out to be 56c per can so around the same cost as the Amazon deals (although of course not shipped). Not sure if available in other stores/states.
The towel is absolute rubbish and worth more like $2. Really cheap thin material.