why do people feel the need to buy expensive cable

gdhal"Because their "feeling" morphs into a non demonstrable "belief".
Actually the superiority of some cables when used in actual Music Reproduction Systems can be reliably and repeatedly proved in proper scientific double-blinded tests and there are examples of such tests conducted on the Internet so you might want to look for them if this is a matter you are truly interested in or if you prefer you can continue to post your "feelings" instead and argue that your feelings have greater value than the knowledge of others as you have done in other threads in this forum and even had your fraudulent representations deleted by the forums thoughtful and purposeful moderator's.

“Because their "feeling" morphs into a non demonstrable "belief.”

Actually it’s quite the opposite. As fate would have it gdhal has sort of become the poster boy for the Backfire Effect. What is the Backfire Effect, you ask? The Backfire Effect is the phenomenon that occurs in a heated debate when a person refuses to listen to ANY argument but instead clings more strongly to his beliefs in the face of contradictory evidence. In fact he won’t even wait for the blind test he so vehemently supports, the test that will prove him right, because obviously he’s already made his mind up. Is that rational? Is that some kind of new scientific method? The demands for proof are only an indication he won’t listen to any evidence, as if evidence is meaningless. Give me a break! It’s right out of 12 Angry Men, when Juror 3 exclaims, “But you can’t PROVE it!” The last holdout. 😡 It’s a conspiracy, gdhal. 🤡

....and even had your fraudulent representations deleted by the forums thoughtful and purposeful moderator's....

I do recall a number of your threads were also deleted.

As to fraudulence, I look at a bit differently. As soon as I mentioned my rationale for wanting to skype - because seeing and hearing you lends credibility to the authenticity of your interest - and that it is a  possibility you are merely a 14 year old school girl without the financial means and/or legal authority to enter into any agreement - did I validate your insincerity. 

Love to spend 10k on cables because they sound way cool.

I have a higher end sound system (McIntosh and Revel Salon 2's). I had a bunch of friends come over and they all brought various speaker cables. High priced down to cheap junk. Fairly scientific, no beer until the test was complete. We did blind testing. We really embarrassed ourselves. A dozen cables from $50 to $1000 and we were all over the board. All I'm saying is perhaps you should test several cables prior to purchasing. You may be surprised at what you don't hear.