I need a new Receiver ... but can't determine if the older 8002 is the better buy ... I can get the 8002 for only slightly more than the newer 6004 ... I don't really need Bluetooth or USB of the 6004 (USB would be nice though) ... I like the THX Cert of the 8002 (not sure how much this really means) & the extra power ... They both have a nice amount of HDMIs and each have the newer audio processing tracks ... except the 6004 has a couple more ... THOUGHTS & THANKS