Thanks for the 21-50 list Criss, makes it much more interesting imo :)
Persona 4, I don't understand why it's doing so well all of a sudden. I guess USA really love Persona! (And I guess it is one of the bigger games one the Vita's horizon, so if you own one you might as well get this game)
Halo 4 needs to pull its socks up. iirc from the analysis that gets posted every week, this was the week that Halo Reach started rocketing in pre-orders.
Animal Crossing & Luigi's Mansion still much higher than I'd have expected so kudos to them.