Why did this sell for so much?

[John Beard]

I was asked to look at this auction, now over, and for the life of me I have no idea why it sold for so much. Any ideas?

Winchester A5 scope 1903 Springfield Mann-Neidner - eBay (item 130296073119 end time Mar-29-09 20:30:10 PDT)

When one considers that a USMC Unertl scope sells for around $4,000, the Winchester A5 looks very reasonable.

J.B.