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
If two products have like quality, durability, appearance and performance but one is more expensive than the other why is the cheaper one not the better value? This does not seem difficult to understand.
Because quality, durability, appearance and performance is SUBJECTIVE. 

If YOU found two products have like quality, durability, appearance and performance but one is more expensive than the other, then the cheaper one is  better value.

This does not seem difficult to understand.
If I audition two components in my system and like the sound of both equally, I like how they look, both have a reputation for being of high quality and durability. But component A is $300 more than Component B. Which one represents the better value? For what reason(other than potential re-sale value further down the road if I decide to sell) would I choose to spend the extra $300?

Thats basic money management 101. We all do it in our normal lives whether it’s shopping for automobiles, groceries, audio, whatever. 
chrshanl37:  I suspect part of my apparent inability to gain acceptance from some to my very simplistic (but logical and correct) price/quality/value relationship is that these guys know me from other forum threads and will (likely) disagree strongly with me regardless of what I present or opine.

Or it might be that if they accept there is a value relationship between quality and price, they might, then, have to accept that they have made some pretty questionable choices in audio accessories.
chrshanl37
If I audition two components in my system and like the sound of both equally, I like how they look, both have a reputation for being of high quality and durability. But component A is $300 more than Component B. Which one represents the better value? For what reason(other than potential re-sale value further down the road if I decide to sell) would I choose to spend the extra $300?
There could be any one of a number of reasons. For example, service before and after the sale may be important. Did the dealer offer guidance before the sale that might prevent "buyer’s remorse" or the churning of equipment? Does the dealer of one product offer onsite service that might speed response time and save shipping costs? Does one dealer offer free loaners, will he buy me lunch when I visit, do I pay for parking at his store or is it free? To attempt to reduce a value judgment to a rigid formula, e.g."products of like quality (durability, performance, appearance, etc), the one with the lowest cost represents the best value" is simplistic. Or conversely, were it as simplistic as this poster absolutely insists, more of us would be drinking the same beer, using the same amplifiers and buying the same dishwashers. Attempts to reduce human behavior to rigid formulas are sure to disappoint. A formula is no better than a guideline, a "rule of thumb."

In this instance, we have an argumentative participant. Note that he wrote earlier:
for almost all purchases, my equation is accurate. End of my participation in this issue.
Now he’s saying:
I suspect part of my apparent inability to gain acceptance from some ... is that these guys know me from other forum threads
This thread is: " why do people feel the need to buy expensive cable?" The answer is: because they have decided that it is a good value for them. And of course, "expensive," as with "value," is subjective.
Again....muddled point.  Service after the sale, lunch, warranty, free loaner, etc. are all part of the "quality" component of the equation.  Just like discount, kickback, freebies, etc. would all be part of the price component.

A 2018 Audi without warranty is not the same quality product as an identical car with one. 

I'm telling you, the reason they are making it so complex (when it isn't) is because they must find a reason to disagree.