As an Audiogon shopper, it's been a long time since I've experienced the instant turn-on from opening the box of a brand new piece of equipment, because all the stuff I buy now is used. 9/10 rating please, heheh.
I started out in this hobby with an HT system similar to yours. And, it' still put together the same as it was five years ago.
But a funny thing happened one day. I realized my system just wasn't cutting it when it came to music reproduction. That was the day I went over to the dark side and started down the path to becoming a Hacidic Audiophile, and started a separate 2 channel system.
Flex is right. Close the book NOW and be happy with what you have, or you'll be tempted into a life of never ending want and audio improvement!