They also sell plastic covers for all the wall outlets in your "listening room" that are made out of some kind of special plastic that's supposed to make your music sound better. ($30 a piece)
I love how it's a given that the minute atomic properties of these little rocks are supposed to have such a huge positive effect on your sound quality, but the plastic bags and scotch tape(!) all over the place apparently have no negative effects.
...Or, for example, the clothes you're wearing. I wonder if any of these audiophiles stand nude in the middle of their "listening rooms" to avoid the sound-dampening effects of synthetic fabrics? Now that I think about it, they'd probably buy some sort of special "sound clothes" to wear instead.
(Now I'm going to go on google and see if anyone's thought of that yet. If not...KA-CHING!!)