I'd say they've been looking at the wrong kind of completed auctions for the finishing price They may have seen a 1:1 sell somewhere and gotten confused.
Glad I'm not the only one who saw that. If you hadn't posted it, I was going to. I wonder if it's a typo and he meant $1,799.99. That's still too much, but more believable.
This is not really suprising at all. I have seen pretty ridiculous prices
on eBay. People just put it up there to see if someone will bite. Happens all the time.