Sometimes a web site messes up and posts the wrong price for something. People order it. Usually the orders just get canceled, but on those rare occasions they get filled. It's always worth a shot because worst case you can just charge back your credit card.
The $2000+ Sony A7R camera is being listed for $200http://store.sony.com/search?SearchTerm=a7r
Pro tip: sometimes you can get price matches for price errors you think would get canceled. Someone managed that with a best buy and the 290s.