quote: 1) How much more would it cost?
quote: 2) Who has the room or the aesthetic taste for all those speaker boxes all over the place?
quote: 4) How much positional fidelity does the human ear really provide: can it discriminate positional sound to +/- 10 degrees? 5? 1? At what point do diminishing returns make for not just overkill, but nonsensical overkill? A related question might be, how does this ultimate limit of human auditory positional perception fidelity degrade when sound is not your entire focus of attention (e.g. when you're preoccupied with other visual/emotional/cognitive stimuli at the same time, and likely to a much greater extent)?
quote: 5) What's the perceptual gain from a 14-speaker system vs. a 7-speaker system? What's the gain from a 21-speaker system vs. a 14-speaker system? If 7.1 sound is already pretty much "good enough", and then further if 14.2 sound would be astonishingly-awesome by comparison, then what would be the point of 30.2 sound???
quote: 6) An intelligently built sound system can recreate a very complex sound field with very few speakers, simply by playing around with how the various speakers are timed relative to each other, and thus how their soundwaves interfere in space. Surround sound can be simulated with a stereo speaker system. What could be simulated with a 7-speaker system? (And is there even any need?)