I really believe GameStop would rather sell customers used games over new ones. Considering it's the core of their successful business plan (as they make more profit per unit on used copies) it's more of an acknowledgement of how they operate than a belief (as if it were some conspiracy or secret).
I don't have a problem with that, but I do find it a bit annoying that they are probably the last retailer to go to to buy a new copy of a given game since they frequently don't stock them (I'm not sure they even order them if they have a bunch of used copies in inventory). They are on the other hand, always happy to sell you a used copy "like new but for less!" of said game. And every time I have to patiently explain that if the game isn't rare or out of print, I want a NEW copy that hasn't been played or opened.
So basically, I've stopped buying new games at GS.
GS generally doesn't keep heavy stock of any given item barring 1st day sales of pre-order inventory, so they really aren't the best to gauge how well Move is selling.
If I make a trip to the nearest GS (about a ten minute walk), my guess would be that they are probably out of Move controllers, but still have console bundles and a bunch of navi-cons.
