Axiom Home Page Forums General Discussion Home Theater DVD player to match Receiver or TV?

I never had a chance to watch a Blu ray on an Oppo. Is the picture quality really that much better compare to Panasonic, Sony, etc... I understand that the player should be better since they are probably using better A/D and D/A, higher sampling rates, etc... which would certainly be measurable with equipment but my question is is that really noticeable by the human eye or is it more of a placebo effect: more expensive player should mean better picture.