Blizzard Entertainment has taken advantage of the holiday season to dramatically reduce the prices on the World of Warcraft titles in their online store. As such, you can pick up the base game for $5, The Burning Crusade for $5, Wrath of the Lich King for $10, or the World of Warcraft Battle Chest for $10. Unfortunately, Cataclysm isn't included in the sale. Still, if you've never tried your hand at WoW, this sale makes for a pretty good entry price.