I'd have to agree, it's all about finding the right buyer. Most people wouldn't be interested, but if it was a Darth Vader, I'd be all over it since it would fit nicely with my focus collection.
You could post it at POTF2.com, since the members there are huge variation/error hunters. What it's actually worth to one of them, I wouldn't know for sure. But like I said, if it was a Vader, I'd be quite happy to pay $25 for it. Certainly not a lot of money, but more than retail.