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
Lizzie, just in case you got left off the distribution list, all cables and interconnects including unshielded ones are directional, that’s what the little arrows mean. Not only that, but get this. HDMI cables and power cords are also being controlled for directionality, at least by Audioquest, since obviously the tiny wires in those cables and cords are also directional. that way you don’t find yourself in the embassassing position of not being able to get the correct direct. I’m quite confident all XLR cables from Audioquest are, in fact, controlled for directionality, too. Don’t freak out.
"I’m quite confident all XLR cables from Audioquest are, in fact, controlled for directionality. Don’t freak out."
Thanks Geoff for the reassurance. It is comforting to know you are "quite confident" that the Big Daddy of cable manufacturing has all of us unwitting buyers "covered" with respect to orienting their wires in the proper direction.  I can't count the times I have come close to freaking out over the thought that even one of the bundled solid core wires in my Audioquest cables may have been inadvertently oriented in the wrong direction by some stoner making cables on a Friday afternoon after a night at bowling league.
@geoffkait 

The audioquest web page you refer to is applicable to interconnects, not "ordinary" speaker wire.