soo many games soo little money

why are so many games for the 360 coming outin the next couple of months, with my 30 pound ($60) A WEEK!! i cannot afford them, cannot afford a Subway let alone a game, with Assassins Creed, Halo Wars, Halo 3, Pro Evolution Soccer 7 (Ninja Gaiden 2 around 08.) worth about 200 pounds ($400). i cant do that :cry: