I'm one who would purchase exotic cables if I had a super expensive system that would merit such. Not because of sound improvement but more for aesthetics. If I owned a Ferrari, I would not put Craiger wheels on it although they would probably perform adequately. If I had a 2 million dollar house, I probably would not have Target furniture even though a chair is a chair.
With that said, I always did wonder the sonic benefit of owning cables that are much better than the cables used on the majority of recordings we listen to.