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 you are referring to me kjanki you are mislead . I hear a sound signature in all cables that have been in my system . Not much more to say on that topic . Next statement please 
I'm NOT telling anyone, one must spend X amount to get a good sound.   Like I said, I think most members are just sharing their experiences.  It's your money so do as you wish.  Why do I care?
Exactly , Who cares ? i sure do not . Some others wish everyone would spend more money on cables for some reason . Are they affiliated or making money some how ? If it is a livelihood i understand the fever determination to have that stance . Otherwise it is just the get what i have mentality . 
Here is a way to explain the overpriced cables : Take and compare a $5000 amplifier with a $5000 cable . Lets take a close look at the materials and costs to build both . Amplifier - God knows how many actual parts ? Think of the labor involved in making it . Now look at the cable . You have a handful of materials to assemble . How many companies smelt and extrude the wire themselves ? If they outsource this they are paying materials and a hour of assembly , packaging .. ect 
Maplegrovemusic, no I was not referring to you.  You presented strawman argument, since people are only sharing their experiences not telling others how much money they have to spend.  If anything I found people telling others, that spending money on cables is silly, that they are cheated by manufactures, that lamp cord from Home Depot is just fine.  Even title of this thread suggests it.