I'm in Sydney and ordered through Amazon.com, an Amazon seller named kiddie world - I ordered 4 @ USD5.40 each plus USD10 shipping - total USD31.60 which for me 9 days ago came to AUD35 - they arrived today, 8 days after being shipped by US regular mail (a week earlier than the earliest estimate).
That works out at less than $9 aust each which I reckon is pretty good - even if they started retailing them here (which I'm not holding my breath for) that would probably still be competitive.
And they are absolutely worth the effort it took to get hold of them. Can't rave enough about how great they are - incredible hold & so comfortable - wish I'd got more as I keep thinking of more friends that would LOVE them.