Ditch Battlefied 3 and get Modern Warfare 3 for 99p

The FPS war is now underway with deals springing up for trade-ins.
Battlefield 3 arrives next week and retailers are already looking to secure more sales with trade-in deals.
Gamestop in the UK are offering Modern Warfare 3 for the  tiny ammount of  99p if you trade in your copy of Battlefield 3.
With MW3 releasing two weeks after EA’s offering there’s going to be a lot of gamers looking to get stuck into both titles and they’ll want to do it as cheap as possible. The question is, would you give up your Battlefield 3 for Modern Warfare 3?