i would buy a pvr just because i dont try much in cod and i do get some awesome sniping clips but i dont have anhything to record with.. the astros just help u hear the game better. i would get those if you actually try and do gb. but i dont do that stuff.. up to you.

If I were you I would go with an HD PVR so you can record stuff in really good quality and you can just buy Turtle Beaches with your leftover money