[citation][nom]graham_71[/nom]Please Note: World Of Warcraft: Cataclysm requires World Of Warcraft, The Burning Crusade and Wrath Of The Lich King to playhttp://www.play.com/Games/PC/4-/11 [...] oduct.htmlWould be ok if it were stand alown, but to need all 3 previous titles, come on...[/citation]
Vanilla and TBC are now $19.99 and include a free month of gameplay each, WotLK is probably still $39 (though it'll go down rather quickly after Cataclysm launches) and also includes 1 free month. All MMO's are the same way, in order to play the latest content, you have to buy all of the expansions. However, as someone else said, you can go 1-60 with just the original "vanilla" WoW and it will include the re-vamped world and leveling experience.