Again, I am just stating my opinion and not trying to offend anyone on these forums.
An my opinion is: Blu-ray or DVD-A or not, surround sound 5.1, 7.1, 9.1, etc, is just plain dumb in a home environment. However, 2-channel audio is tried, tested, practical, sounds great, and will be around for a very long time. Meanwhile, companies will probably keep adding more and more speakers to surround sound systems to make them as messy and impractical as possible.