I think everyone has there own point on the curve they choose to be. Some would think a 568 is extremely excessive and others it's just not enough. For me and what I'm willing to invest in Audio/HT the 568 is perfect.

Regarding Lexicon, been there done that, never again.

I'm actually running 5.0 and extremly happy. I have my eye on a 598 when it comes out but it may be a hard sell. I'd rather upgrade to all digital if I had money to burn, rather than more speakers. And I think it would have to be very near the top end digital speakers to top Krell and B&W. And looks matters. 803's were bought half for looks. 802's and 801's are ugly as sin to me and my wife. 803's are even pushing it with the wife.

My room does not allow 7.x to be done right.

I think folks are artifically adding too much bass to there systems. Again there is only so much abuse my wife is willing to take in bass, looks and number of speakers. She keeps me sane.

- Fiddler (IMHO)

If you think listening to music is fun, try learning an instrument.
HT: G61RSL, 4x5K, 5.5KHC, 2xSC6000, Transporter, HD621, Philips BDP7501 4K, Tivo, 65" LG OLED 4K C6
Computer: Foobar2000, 5K, Mojo, HiFiMan HE1000 V2