Sonos is awesome...I set it up in a friend's house and have had gadget-envy ever since.

"Every Klipsch driver we've ever heard seemed most comfortable with music, and this setup is no different...It's hard to say why "the Klipsch sound" fits so perfectly with musical composition, but it just does."

I, and most people I have talked to, would say the exact opposite. Klipsch struggles with music content because it's high-frequencies are fatiguing, and far too overextended. There are much better options for music listening, IMO.

Because you're not setting the TV's correctly. Out of the box, the 120Hz mode is a disaster, and looks exactly like you are describing it. Set correctly (probably on low mode, but that depends on the TV), and it will smooth out motion as intended. Yes, there will be occasional artifacting/tearing, but nowhere nearly as bad as what you get with out-of-the-box settings.

That said, for $4,200, get a damn Pioneer Elite.