Pylon: You clearly haven't yet taken the nxt no-brainer evaluation test yet.
Here's how it works. Look around your house and in every room write down every occurance audio output. (many forget the telephone... so there's a little hint for you). Don't forget to included 2 speakers if there are 2 in a radio, or perhaps four in each HiFi Channel. If you have a talking toaster or fridge stick them down as well.
Then once you have a list, starting at the top, work your way down, and put a tick next to each item where nxt COULD be used as a replacement (a cheaper lighter more efficient easier to manufacture space saving replacement of course)
Once you have the whole page ticked, consider items than you COULD deploy NXT in (like a car interior roof maybe).
Then... add up all your ticks and post your total here.
Yep .... You've got it .... it's going to be massive !