why do people feel the need to buy expensive cable


I have tried expensive cables and one's moderately priced. I would say there were some differences but I can't actually say the expensive cables were better. IMHO I believe a lot of people buy expensive cables because they don't actual trust their ears and are afraid of making a mistake. They figure the expensive cables are better for the fact they cost more. If you have a difference of opinion or share the same thoughts, I would like to hear about it.
taters
Geoff is definitely more than a few cards short of a deck 😝. He’s also wrong...a rich man can buy his audio indulgences over and over again until he accidentally enters Audio Nirvana!  A poor man has fewer options and needs to get it right the first time...IOW, the deck is stacked against him or her or it or whatever is PC today.  Of course Geoff would convince the poor guy his Bose would sound SOTA if only he would buy some of his audio trinkets and snake oil.  Actually, that makes Geoff worse than a rich man.  At least a rich man wants to have an honest chance at purchasing a slice of ANirvana, while Geoff lives off the poor, desperate wretches looking for a magic potion to convert their electronic grunge generators into heavenly sonic bliss!  I can respect the rich man for his capitalistic purity.  Geoff however, is far worse...for he sells empty dreams.  Then again, perhaps that defines a free society afterall.  Anyone should be able to pursue anything they want, no matter how foolish or baseless it may be.  Carry on dear patriot...let not your conscience be bothered.
dave _b seems to think all audiophiles are mindless fools who are incapable of making decisions. By his lights they all need 'protecting' from charlatans and con men and are universally gullible.  
Where I think audiophiles, like nearly all people ,are intelligent, have an ability to make decisions based on self interest. 
And just because someone chooses to buy a product dave_b thinks is hokum, does not make him right. It is far more likely to mean dave_b is wrong in his assessment.           
As for Geoff. :But what am I you ask? clearly you are a giant gingerbread cookie. Your photo PROVES it. Where I am a giant blank slate with a big "E". I think I escaped from an eye chart...
Elizabeth is obviously very emotional right now.  You missed the tongue in cheek aspect of my post apparently?  That being said, anyone should be able to pursue anything they please.  I was simply riffing on the analogy GK mentioned.  It was sarcastic humor with a thread of truth perhaps...certainly not a treatise or anything worth publishing.  Relax, take a bubble bath and put on some Perry Como for goodness sake!  Geeez
Something is wrong with dave_b. We don’t know what it is. But we suspect ye olde peaches and hamburgers syndrome.