Found these at the Adelaide Airport IKEA and from what I could find online this is the first time these have been on sale! Still showing as $299 on IKEA's website however. There's plenty in stock of both black and white.
There are some great reviews for these online, they can blend right in and are great options for standalone/surround speakers.
I didn't try but could potentially be used in conjunction with the $10 off offer: https://www.ozbargain.com.au/node/705336
First time posting so if there's anything I've done wrong please let me know! :)
That's 10% off so it could just be the duty free price, given you're at an airport