Anyone else reserved their copy of Metroid Prime 3 yet?  Well, I tried to put my usual $5 down at Gamestop and was told the minimun to reserve the game was actually $10.  This usually only happens if the game is a limited printing, or if it has something extra included with it.  Any speculation as to what this may be?  Perhaps a Zelda-esque collectors' disc featuring some of the older games?