off course...You got a point there!
but i don't know how to explain...sometimes "ordinary" cables just feel better to me....PLUS a lot of amps nowadays are too bright anyway IMO. just sold a suhr badger for that reason...
it reminds me of a story i hear very often (and i've been thru it myself): people tryin all kinds of expensive high end microphones to mike an amp live....and in the end its: going back to the good ole SM57
i even go further: in live situations the skills of the engineer or the sound of the room can make or break Your sound, regardless if You play a 600$ or a 5000$amp...so like bjorn said, the color of the cable could be more important sometimes than the sound. i remember one tour with another guitar player with a RI Twin (those seem to be everywhere,hehe) a Japanese strat and a Boss super overdrive and dammit, he was sounding much better than me with all my fancy stuff.
for Gilmour or the Edge it might be different, they got great engineers, i'm just talkin of a standard-workin-musicians-situation...