I don't think the price spike was legitimate. I did some research, and I guess someone bid against themselves on eBay to jack up the price of their listing, and the community went into hysterics.Hadn't heard about it, but after searching, you're right. I'm guessing it's because it was at one time involved in a pretty dominant deck, and Expanded is official in NA this season so people are trying various new lock decks with it.
I think I have like 12 of this card in my collection. I...I'm rich!