sure enough, mine was scratched and i didnt even want the limited version, the moron at gamestop wrote me down for that and charged me more by mistake (i didnt notice the price difference because i had traded in games towards it).

but yeah, ms is now offering a free mail in trade on their website for scratched copies through decemember. luckily for MS, scratched discs still seem to work without issues, and it appears to be more of an aesthetic thing, but we cant know for sure until we put a lot of hours into it.