Maybe the seller had been in touch with potential buyers?
Okay I didn't contact end users for this auction, but I had been in touch for a Sedo auction, where the reserve was £200 (or £165 after fees) and it didn't sell.
Whilst I would have originally expected a higher selling price, as Frank has pointed out, it was bought at an even lower price!
There's no doubt the domain is worth more than the selling price, but it was my first sale on Domainlore, which is one of the reasons for auctioning it there, so it was an interesting transaction.
Next time I'll make sure it doesn't end on a Sunday!