I suspect the reason is that it is just straight up expensive to ship to Australia from most places. We're actually quite a long way way. Adding to this is that

I suspect the reason is that it is just straight up expensive to ship to Australia from most places. We're actually quite a long way way. Adding to this is that most only retailers aren't shipping enough overseas to negotiate bulk rates like they can for domestic shipping. The exception is businesses that do ship a large amount to Australia. Examples of this are online book and bicycle retailers in the UK and Amazon themsleves in the US. Their lower shipping prices are likely a combination of subsidisation and bulk discounts. If you want confirmation Death Wish isn't trying to rip you off, compare against the USPS pricing calculator for a similar package. You can also check against what a freight forwarder (who do get bulk discounts) charge, and you'll see it's not much less. I recently got a similar package shipped to me and I remember paying pretty much bang on $27.