I bought MoP for 29.99 and that came with 30 days of game time, raid, multiple instances, new zone, new class, new race, new pets, new quests, new story, new mounts, new zone.
RotHC is 19.99, does NOT come with 30 days of game, nor any of the other stuff. All it comes with is the planet and 5 levels.
And yet another post that makes assuptions, we have afew months let them get more news out, if they poped the cherry on the first reveal you all would complain that there isnt enough then to.
its a marketing tactic, you tease a product then closer you let more news be known, its happened idk every game or movie release ever.