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
What is the problem here? If you don't believe higher priced cables make a difference, don't buy them.

I don't really understand all this angst to scientifically "prove" something that, at the end of the day, is 100% subjective? 

That's a bit like trying to prove that classical music is superior to jazz?
 
That’s a bit like trying to prove that classical music is superior to jazz?

Of course, it is superior. Jazz musicians don’t even know where the right notes are constantly searching for them. For instance, Jazz bassist "walks" all over the finger-board to find proper note, while classically trained bassist knows where the note is and just plays it.

Why wonder, listen to them. Go to THECABLECOMPANY.com and access their lending library. Listening is the only way to know. 

also see, JPSLABS.com
A good medium priced Cable is the least you could do pending on your system 
I don't buy expensive cables.  I buy the ones that sound the most incredible (actually, they don't sound like anything at all).  Just so happens that those are...expensive.  Cables tie it all together.  That system should give you goose bumps.