As some members found, G1 retro Thundercracker was briefly, wrongly, advertised on their website at $4. The listing got taken down quickly, but if you find one in-store, it might still be $4. It was part of their current sale, with many items (including the G1 retros) on sale. Some good bargains e.g. G1 retro Shrapnel and Kickback at $20 each (from $59.98).

https://www.jbhifi.com.au/search?que...saleItems=true

Hopefully this kickstarts JB back into stocking new TFs.