This is something I have always wondered - why do people buy shite games? If I don't want to play it and it is not worth any money, why buy it? Take your post for example Smurfette, why buy all those games? Are you completing your collection? I can't imagine you are actually planning to play most of those nor sell them, so why buy them?
It isn't you specifically, but you made me remember that I wondered this. Like the guy a couple posts up - why buy two Sonics? What is the point?