I've noticed this as well on several occasions. One in particular was an F50mm auto focus that went for almost double the new price. I couldn't believe it. I even emailed the seller after the auction saying if the buyer turned out to be a fake I would be interested in the lens for a reasonable price, but I never heard back.
Did the lens go back on eBay? I've seen a LOT of sellers using "bandit" ID's drive the price up then, either offer it to the next highest bidder saying the winner never contacted them, or re-list the same item a week or two later....
-- Later, Gary
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