Seen a modern recording and production facility lately? Most of the time the people on the recording were never even co-located in space and time, but people go on and on about how one brand of tube brings out the ambience of the recording space and the interplay between instruments so much better than another.

The perfect capacitor in the speaker crossover is essential. Meanwhile the signal from microphone to pits or grooves has passed through such an array of direct boxes, mic preamps, mixers, compressors, expanders, effects processors, A/D and D/A converters it's literally mind boggling. But dammit, that one perfect cap will put the artist in your living room.