Sheesh. I've seen a few of these on ebay myself. I remember almost bidding on a Cybervision64 card for $60, when I suddently realized the shipping was (more than) $150.
It's the most common way to minimize your fees on ebay. IIRC, ebay collects a fee based on a certain percentage of your selling amount, not including P&P.
Speaking of ebay, another thing that annoys me are the pyramid schemes out there. Try searching for "macbook pro", and you'll only end up with lots of "This is not an auction, all bids will be deleted, click here to get your free macbook!" with an affid URL. Does not belong on a auction site, if you ask me.