Frankly, I dont care how many speakers there are, 5.1 6.1 7.1 10.2, I just want there to be a unified standard, so all media will come in the same format, so if I have a 10.2 system, it will actually be put to use. If you have a 7.1 system, but 5.1 media, its worthless. Find some sort of happy medium, and finalize it. People will be more inclined to buy a home theater if they know that every DVD will take advantage of it, not just the newest Star Wars of Lord of the Rings epic.
[begin rant]For the record, I think 10.2 is not worth it in the home, someone told me they heard 10.2 (the version he heard was pretty much 5.1 twice)and the only thing that distinguished it from 5.1 was when the orchestra finished, the standing ovation moved from the bottom 5.1 to the top 5.1 set. That sounds cool, but I dont want to buy 10 identical speakers and 2 subs. Thats another thing, Surround sound (music at least)is mixed with 5 identical speakers, the center is not flat, and the rears are not smaller than the fronts. Yet most home theater setups have at a minimum 4 identical speakers with a flat center, and the worse ones have smaller rears. This might be fine for movies, but music is so cool in surround, but theres no market because all the speaker setups are for movies[/end rant]