As someone in what I believe was another thread pointed out, we've got barely anything that actually uses the full 1080p as is, so anything more than that's a waste at this point. Basically you've got Blurays and that's about it. Broadcast HDTV and most games are natively 720p (actually, I think some TV is still 1080i), although they can be and often are upscaled to 1080p.