well, I think the seller is banking on a desperate collector addled enough to spend that much cash on the
17O6. It IS the most-sought-after MW from RoS for some reason (people are willing to spend more than $250 for it on ebay...), but it is most likely a hype.
I tried to get this card lots of times, bidding most insanely, but this is opportunism at its coldest and worst.
The Eomer MW from Hunters was very sought-after for a time, but it has
come down to an average Hunters MW price level since then...