Money and time. It's just too expensive to own all three and keep up with buying games. With being a family man with a meh paying job its too difficult to spend money on more than one. Even If I could afford it I just don't have the free time. I can't even keep up with PlayStation games, let alone another. So I have to live vicariously through you Nintendo and Xbox owners. So in conclusion I consider myself a Sony fanboy. Not because I hate the competition, but because Its not practical for me to expand outside the PlayStation ecosystem.