I completely agree with you. eBay's fees are obscene when you do international sales. Their strategy is to advertise a fee that's around $13 percent - at face value that seems reasonable, almost trivial. But then they also slug you with fees on shipping and customs (both paid by the buyer) and you don't get extra income on that. It's almost like eBay is penalising you for shipping internationally. So it's a matter of luck if you get a local or international buyer. If you're willing to ship globally, the chances of getting an overseas buyer are high. For many Europeans, Asians or even North Americans it's often cheaper to buy from Australia than the US because Australia Post's costs are quite reasonable in comparison.

I have added a 20% handling costs for international buyers to cover eBay's hidden less transparent fees. 

The good news is that if you sell under $25k, your fees will be reduced significantly from 12 May (unless they have changed their plans. I guess eBay is feeling the sting from the competition. Many sellers have reported that their sales are down. I regularly check how often items for a certain category sell in Australia - at the moment it seems like the platform is dying. I'm pretty sure that the coming fee change is their last bid to turn things around...