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
@taters 

Because they are scientifically illiterate. People who fall for "audiophile grade" cables (or even worse, for example, "directional fuses") and similar audio trinkets are in the same league with anti vaxxers, flat earthers, lunar landing deniers, GMO panic mongers and 9/11 truthers. A bunch of sad but dangerous fantasists.
Ya gotta love it when someone actually thinks taters is a real person. You can’t make this stuff up folks. Enjoy it while you can.
The title of your topic seems to want to start arguments or fights because it is so controversial. If you have found your own answers to that question then why would drag the topic through the mud?
BTW where I grew up people called potatoes, potatoes. Only uneducated, backwoods, redneck hillbillies called potatoes taters. Is that not two sentences meant to cause a fire? Would it not be best, if I thought that to be true, to remain silent? 
The title of your topic seems to hit at a core religious icon of the scientifically illiterate audiophools.  Is that why you use the moniker taters?

But I doubt you can drag the mud out of the heads of the anti-vaxers and scientologists?
"Clearly, the big fat stiff cables are making up for other deficiences in other areas. "

Sorry to disappoint you but no, not the case 🤣!