This "magic line" you talk about isn't so black and white. The fact is that children are easily influenced. You know the old saying "monkey see monkey do". The older a person gets the more they learn right from wrong and understand the consequenses of their actions more fully. This happens quicker for some people than others so to protect those that aren't ready society tries to shelter them until they are ready to make their own choices. Once your an adult society assumes that you are the person you are going to be and that you won't be influenced to do some of the things that they see and hear in the media. My opinion is that there are things in the media (including games) that children shouldn't see, but that is up to the individual parents and guardians to decide if the children under their care are ready or not.

I don't buy alot of games because I don't think the value is there anymore. I have to be fairly certain that I will like the game before I get it becuase I feel the cost is getting out of hand. That being said I don't limit myself, if there are games that I want I get them. A good way to help limit spending (if you can wait) are second hand games. Just check the discs before getting them.