Hi. I know this topic has been discussed several times before, but I am ready to buy and want some hard advice before I make my purchase. Is the extra 7th channel of amplication the 3802 provides worth the extra $200? Or, are there features (amplifier power, etc.) that make one unit desireable over the other? I've never heard a 6.1 vs a 7.1 setup, so I'm relying on current owners/listeners who have a little more experience with this for help. Any help would be greatly appreciated.