It's OK. I ended up making him pay about $100 over what the average selling price was for two items.
If I really wanted them, and the price was in a better range, I would have kept bidding. But they were only aussie daybills, so I wasn't bidding as aggressively as I might have otherwise done. What pisses me off more is that he took both of the ones I wanted. He didn't want to share.