sure, just follow these simple steps
1.find GH3 in a store
2.open the box
3. take out just the game
4. put box back on shelf
5. RUN!
Disclaimer: I do not condone the above actions
but seriously, you figure 30-35 for a game is pretty standard (think of any other game for the 360, they retail for 60 bucks, so getting it for 30-35 isn't too bad)