Re: is 2.1 good enough for the Costco crowd?
Yes, I believe and say the 5.1 system will continue to thrive. Even the mainstream consumers get excited when watching and hear your good 5.1 system with the subwoofer. I think that helps drive the HDTV purchase. Knowing that its an entire package.
Plus, here anyway, those soundbars are not pushed and displayed in real view. From what I can see. Maybe for a den, kids room, where you are looking to say a little money, them I see the Bose 3-2-1 system in play. But, not in the large living or family room. And not in the basement either.
My 2 cents.