Interesting avatar. Although I don't remember ever seeing Catherine wearing anything like that in the game.
GS is sold out. Don't worry, you'll either get the last ones from Amazon or none at all. Atlus doesn't play around.
As for the supply of the LE of this game, I'm sure there's at least ONE GS out there that has it in stock sitting in their backroom. So eventually it'll drop to $30 new like the FO NV CE did.