I understand that with patents expiring on RBCD technology Sony and Phillips wanted to make some more money, and with the popularity of 5 channel home theater 5 channel music made sense. But is it really that great. Isn't the point of a stereo system to make you feel like You are in a small bar/concert venue and Pink Floyd is there playing live? I only have two ears, why have five speakers. What ever happened to quadraphonic audio? What is the opportunity cost of switching to a 5 channel system and buying a DVD-Audio/SACD player as compared to buying a some better speakers or a better DAC?