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
Anyone hear of a big name system audiophile that did a blind test with Monster cable and his $20k Transparent Audio Opus ? This was done on the AVS forum website . He picked his cables 3 times out of 7 tries . The other 4 he picked the Monster cable .
Well to each his own. I use clarity Cable interconnect and power cords  , atlas mavros speaker cables. One high fidelity power cord. Works fine for me to each his own. 
@calvinj whats the difference in the music when you compared the HFC to Clarity Cable interconnects and power cords?
High fidelity is more transparent quieter backgrounds and better prat. . Clarity has a more extended top end with a little bump in the upper midrange. Which my system needed a little of.  I like my cymbals to ride a little bit!
I have to say I am using Transparent Ultra Gen 5 cables with my new Focal Kanta No.2’s (Krell amplification and Yamaha CD S2100) ....just absolutely riveting!  So lifelike on all levels...shockingly realistic to the point of enveloping me in the acoustic and textures of the original event. Never have I heard audio reproduced so compelling and alive with every last ounce of low level details coupled with such a massive dynamic range and glorious harmonics.