I just saw the link on the launcher to the Blizzard store (http://us.blizzard.com/store/browse.xml?f=p:110000034,p:110000018,p:1100000265,p:110000044,p:110000004), where they're offering WoW for $5, BC for $5, Battle Chest (both of the above, plus both strategy guides) for $10, and WotLK for $10! (all quoted prices in USD). Dang! Wish I'd known this was coming before I bought the Battle Chest for the youngest, although I'm DEFINITELY glad I didn't buy WotLK for the other three accounts (wife and both sons). Ima go buy three copies of WotLK right now, since it's a pre-req for Cata.