Dan,
I'll see your gym socks and raise you a pair of GoldToes :-).
Audiophilically (made up word) speaking, I've found that gym socks absorb too much high-frequency, the GoldToes provide just enough warmth.
Sorry to keep it brief, but I have to go and patent my new idea: AudioSocks – the socks for audiophiles.
Love this thread!
Alberto