geetee, I'm not looking for an argument, I am just a bit curious. Hoping to hear a few different viewpoints.
I have fairly decent hifi, Roksan processor/pre amp and Roksan power amp, tend to use a CA Dacmagic to play WMA/FLAC files.
I use mix of cables, nothing stupidly expensive but I do have Linn interconnects which came with a s/h Linn system I have since sold, I can't say I noticed any differences between cables. I do use spade connectors on my speaker wire as I think that a good "clean" connection is important.
I do believe that some things that many would consider snake oil make quite a difference, e.g. equipment stands - I had my first hifi on a cheap Ikea pine TV stand under the TV, I was re arranging the room and put the separates on the laminate floor, it made a huge difference, so I bought a decent stand.
At the moment my system is run from 1 socket and extension leads, I am thinking about adding extra sockets to the room as part of the house refurb. If I do I was considering making up some decent quality power cables, nothing stupid just about £15 - £20 a cable.