Audiophiles vs 'non believers' is often more of a brawl arena than the average LFS vs rFactor debate..
Do you go by science or by feel? Putting expensive dampers under a CD player doesn't change anything. Unless you charge a hefty sum for the thing, then the buyer simply WILL hear a difference.. Afterall, he spent all that money, so the 'soundstage' (whatever that is) must expand! Its quite hilarious imo how many impossibly expensive useless gadgets there are. Cables for $1000 per meter are commonplace, yet you can't fault a piece of $1 piece of decent copper. Try those cables on your coffee machine and enjoy a new taste! Err.. Oh not to mention your washing machine; colors preserve a lot better with a 2000 quid cable.. But in audio, yes, every expense somehow changes.. no.. not that.. IMPROVES the sound!
I rate sound quality as an important thing but I approach it from the 'scientific' side. Mp3, if coded correctly (LAME for instance, and to be safe at a high rate like 160 or 192kbit) is not audibly different from WAV. Very very few people can hear that, and in some cases they preferred the MP3.. Often blind tests, wether it is simple things like CD players, cables or MP3s, show no difference between 'good standard stuff' and 'exotics costing 20x more'.
By far the most important things regarding sound reproduction, imho, are:
- the recording; often not ideal, often using too much compression (no dynamics) and poor use of stereo or tonal balance can really make a record sound 'bland'.
- The speakers; distortion, frequency response.. All much harder to get right in a speaker. Any normal CD player will be great, a reasonable (few hundred euro) amp will deliver.. but speakers are more variable.
- Acoustics (sp).. A stone room or Granny's living.. Huge huge differences in how sound bounces / decays..
- Setup: having a dedicated listening 'triangle' spaced well away from walls to avoid being subject to indirect sound..
and of course..
- Neighbours: poison them so you can actually listen at fairly loud levels for more than short periods without them coming after you with an axe..
Audio is just two streams of 2 dimensional low frequency (relatively) stuff thats really not that hard to get right. If we all optimized our (living) rooms for accoustics, poison our neighbours, and sack 80% of the recording studio personell.......