I'm not actually a massive fan of Heineken, but 3 tallies for $12, you can't say no. (Or you could). Plus drinking out of a tallie is way more fun than a normal bottle.
I don't know if this is just local to my store (Footscray, VIC) or not, and not sure how long it lasts for.
Saw this down at my local in WA as well so appears to be nation wide - got three last week, all gone this week though. Worth noting that the longnecks that I purchased were brewed in Holland - not the licensed Aussie stuff.