Your argument may be valid if you buy something today and 30 days later find something wrong with it. Your claims that you've bought games and such and had these issues and they refused to exchange seem outlandish unless you tried to return it weeks later. However, I can't argue with you because I'm not you and I wasn't there. However, I think if you buy a game and it is defective then you have a right to exchange it for the same item.