Best Buy offers World of Warcraft: Warlords of Draenor Expansion Set for Windows for $8. Opt for in-store pickup to dodge the $4 shipping fee. That's $4 below our Black Friday week mention and the lowest price we've seen. (It's a current low by $10.) This game requires both World of Warcraft and World of Warcraft: Mists of Pandaria to play (not included).