*all my personal opinons*
"Why do we have audio, to listen to music, or to listen to components?"
well, of course it is to listen to the music, but the trade-off being better system=better music
Do we buy audio to impress people, or to enjoy it?
I would have to say both, I love vintage gear, I woulnd't think twice over choosing a vintage unit and a modern unit (considering they are in the same league) and all my gear I really enjoy, both visual and sonicaly, but my gear also has the guts to back it up, becuase over the internet you can't just walk over to someones house and listen to their system in their room how they have it setup, so you tend to go by specs and what kinda of things it uses (be it caps in amps or drivers in spekaers)
"Do we buy hardware and limit our enjoyment to ever searching for better components, or do we use it as a means to get to the music?"
?
"Do we need top flight systems to enjoy the music? Can music not be enjoyed with lesser systems as well?"
you can enjoy music if it's on a $20 boom box or a $100,000 rig, becuase it goes back to listening to the music for what it is. BUT there is no such thing as the best system, becuase here's how I see it, let's say you are listening to the best sound system ever made, call it system X, so your playing your favorite music on system X, wow it's great and all, but then you say you want better bass, so you get better bass, but now it's not system X anymore, it's system XB (B for bass) but now you want even better bass, so now that system is XBB (BB for better bass) so your listening, and like wow this is great, but I want a wider sound stage, so now our system is XBBS (S for sound) get the point? it will just keep on expanding and expanding
"Why is it automatically assumed that bigger price means better audio?"
that goes for anything. more expensive car=faster, more expensive computer=faster/do more things, more expensive camera=better pictures, more expensive plane= move people more efficently etc...
"Why are demos very often limited to inherently quieter types of music, like light jazz, some soul, a bit of chamber music? Where is the adrenaline packed stuff? Why isn't that demoed - perhaps because very low power magical audio simply dies with anything with a dynamic range exceeding 7-8 dB? "
because Jazz and other music like that can make any speaker, even cheap spekaers sound good, it's a sales technique that sales people use, and the consumer hardly realizes it, just one of the many actualy.