The Steam Controller is on sale from Valve as part of the Summer Sale for $35 USD, however they still aren't shipping to Australia.
Amazon however have matched the sale price and will ship to Australia for a reasonable price (worked out to ~$8.50 shipping for me, living in country Victoria).
This is $20 AUD off the normal price, cheaper than refurbished units, so if you were interested in picking one up, now is the time.
Can any user of a Steam controller give some feedback on what they think? Is it worth it?