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[lots of good stuff elided]
There is rarely only one way to solve a problem. There will be multiple
ways to distribute data, video, voice, etc.
Completely agreed, and I think this is the crux of the entire
thread.
As I mentioned to Bill earlier in this thread, costs are one
thing -- business models are built around them, while balancing
the technical economies of scale. 
Vive la diversité!
- - ferg