This has been around for while, but I just came across it. There is a company on Amazon.com seriously selling a network cable for $500. Read the comments, but warning-- you may laugh so hard you wet your pants. http://www.amazon.com/gp/product/B000I1X6PM/ref=cm_cr_pr_product_topIn addition to having an absolutely outrageous price, its product description is nothing short of marketing-at-its-best and the fallacious reviews are hilarious. Denon AKDL1 Dedicated Link Cable
Get the purest digital audio you've ever experienced from multi-channel DVD and CD playback through your Denon home theater receiver with the AK-DL1 dedicated cable. Made of high-purity copper wire, it's designed to thoroughly eliminate adverse effects from vibration and helps stabilize the digital transmission from occurrences of jitter and ripple. A tin-bearing copper alloy is used for the cable's shield while the insulation is made of a fluoropolymer material with superior heat resistance, weather resistance, and anti-aging properties. The connector features a rounded plug lever to prevent bending or breaking and direction marks to indicate correct direction for connecting cable.