Well Hyjal wasn't *really* available at launch since no one could kill Kael'thas for the attunement until the BT patch. But sure, you had all of tier 4 and a buggy tier 5 to play with at launch, and tier 6 added in less time than its gonna take us to get the Firelands raid. The only way Cata could turn out to be better is if they avoid the massive content gaps like Illidan>Sunwell, Sunwell>Wrath and ICC>Cataclysm. But I'm not expecting much.