I agree with you, it would be nice for them to include it in the box with the system, but to try and think form the manufacturers point of view. The reason I believe for this is cost. They know that every one that buys a ps3 or 360 has a tv that has SD connections, but it's not the case for hdmi. To include a cable in the box, regardless of how much it costs sony or microsoft, is a waste if the consumer does not use it. By selling their own brand of cables, at huge markups, is a way to recoup some of the costs of making a system. I know the ps3 was sold below cost for a long time and most likely the same for the 360 as well. business is business, they are just out to make a profit.