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
It’s oft times quite humorous and entertaining to read opinions about so called exotic cables that second guess what people who actually have experience with them say. What the ding dong? 
dynaquest4
... the "subtle" (positive) changes that exotic cables may or may not be able to achieve, are reported as "jawdropping," dramatic," "night and day," etc. If switching out a cable can make those kinds of improvements, you would have had to have been previously using metallic thread.
Not exactly. What you're describing are subjective impressions, so naturally they will vary from person to person. I've eaten burritos that I thought were much too hot, yet my wife thought they were just hot enough. Get it?

Additionally, cables shouldn't introduce anything into the music program, they should only eliminate outside interferences. Anything else you "hear" after switching cables, IMO, is voodoo magic.

+1

And that is true even if you "reverse" them. :)
It’s oft times quite humorous and entertaining to read opinions about so called exotic cables that second guess what people who actually have experience with them say. What the ding dong?

Except the "experience" cannot be reliably duplicated when any kind of objective test is brought to bear.

Hyperbole, hyperbole, hyperbole.

Sellers are at pains to magnify whatever differences/improvements their 1K product has over the standard 50-buck special.

Listeners are so excited when they actually hear any difference, whether it's genuinely an "improvement" or not, that they exaggerate the changes that they hear.

And so it spirals onward.