I plan on contacting the postal service (another organization run by idiots... I mean the government... Nope. I was right the first time. Idiots) to see what the issue is.
It's really unfortunate that eBay is the monster that it is; another form of competition would be nice. I'd like to be able to sell some things myself that I don't need, but between shipping, fees, etc. (not to mention people that try to scam you all the time), it looks like you just take a loss and waste your time. Might be better off just having a garage sale, or putting stuff on Craig's List.