I'm with JoeE back on Post 11. My only snuggly action is from my wife, which is fine, but she's always there in the morning so I can't really evaluate equipment that way.
Mods are cool. I couldn't afford a $3,000 CD player. I could afford $1,800. Did I get comparable (maybe better) performance? You bet! My remote control and player aesthetics are not on the same level, but I don't care much about that. Mods put the dollars where they count - in your ears! (nice visual, eh?).
On a philosophical level, why try to prove to a man that his reasons for happiness are unsound? If empirically the sound from any upgrade is identical, but the spender of the money believes there is value, hasn't the dough been well spent?
As a prominent reviewer stated about the Walker SST (summarized), How to clean the stuff off all the contacts and cables? Further, why would you? How would you rip the tube section out of your modded CD player? Capacitors and Bybees from the amp? Head-to-head comparisons are valuable in some contexts (cable switching for instance), but not with mods.