Interesting, rare and sometimes cheap ebay items.

[BruiseLee]

Maybe it's a sham bidder, to make people THINK it's worth that amount?

Quite possible. Had a look earlier and the person who bid had about a 6 feedback score. Not to say those with low scores are sham bidders but this price is just too much of an outlier. Perhaps the auction will end and the seller will later claim that the winning bid did not pay. Not sure if this is the case but the item may still appear in a sold or completed listing.