7.1 is nice, but if you dont have a reciever that actually uses the 7th channel, instead just mixes the front and back, then I dont think it is worth it.
I used to be like a lot of people with home audio, I have 5.1, that is the best there is. No, there is 5.1 for regular people, and 5.1 for audophiles as we a re called.
I can promise you that I can pop in a movie that you have already seen, and you will say that you were never immensed into it like that ever before, you just get lost.
Not meaning to sound like a snob, but I just know better now.