Went to buy these from this eBay deal posted earlier (https://www.ozbargain.com.au/node/549231) but it was OOS.
Turns out it was a blessing in disguise, I found them for the same price on https://justwines.com.au/
If you're a new member and follow a referral link you get $25 off your first order.
Worked out to $49 + $10.99 shipping - $25 referral bonus for a grand total of only $34.99 ($33.77 after cashback)
70c a can or $2.11 per 750ml - can't even buy goon bladders that cheap!
Edit: Looks like they're back in stock on eBay, but if you're a new member it's still cheaper buying direct from JustWines
Edit2: The party is over, JustWines have been ozbargained. No codes seem to be working anymore. Let me know if anything changes.