I recently ran across the discussion between Gene of Audioholics and Audioquest and decided to add my 2 cents worth. A little background on myself: I am a 24 year old film school graduate who sells high end audio/video for a medium sized retailer in Austin, TX. My company is an Audioquest dealer. I am a very open-minded person and always go out of my way to suggest alternative options to clients and make sure that they do their own independent homework so that they are comfortable with what they are purchasing as being the best solution for their needs. I am happy to A/B cables, speakers, amps, etc with anything else they bring in and have occasionally traveled to a client's house with demo gear for comparison.
I will admit that I and my entire sales colleagues have been a little wary of some of the higher end cables. So, with extra time on our hands and a store full of high end gear, we decided to put some different cables to the test. The only form of measurement we used were our own ears as we did not care what other sophisticated devices had to say if we couldn't hear a difference. With that said, there is definitely a difference and various levels of improvement in overall sound quality even in a jump from a $1,000 to a $2,500 cable pair. But of course, we were using some of the best gear available in different setups.
I can understand Audioquest's POV in not sending someone a trial pair as a part of it may be a psychological leaning to try to debunk any myth, but an average Joe could also seek out a custom AV shop that carries the cables and ask if they would be willing to give you an A/B demo. I have had clients ask me to do this and I have always complied, but I am pretty easygoing and not a typical "used-car salesman" type. I have even set up this experiment for clients who wanted the *perfect system* and we found a good middleground of price vs. performance in all aspects of the system. I will also admit that the scientific proofs and numbers that manufacturers use are over my head so I do not attempt to sell cables based off numbers or specs, just the experience it will provide. That is just my 2 cents. If you are ever in Austin, TX, I will be happy to give you an A/B comparison with any other branded cables, lamp cord, etc.
That said, music is a very personal experience. What makes sound quality "better" to one person may not be the same for another. Rap music may sound great on one pair of cheap speakers but not on the higher end ones. Classical music may be the opposite. There are always exceptions to the rules though. I have used this analogy in the past and it works for my train of thought:
I love a good steak every now and then. When I first discovered steak at a nice restaurant with my parents, I went on a binge everywhere I could find it to try new types and cuts. At the time, this was limited to "nice" (for our family) steak joints like Outback or Texas Land and Cattle. An "expensive" steak at these places was in the $20 range average. I was in heaven. Years later as I had my own income and wanted to show off for dates, I found another level of restaurants with $40+ steaks. I learned about different cuts (Specs) of meat, cattle breeding, grazing practices, etc. After tasting a few of these, I can no longer go back to the Friday's or Outback level because my taste buds have been spoiled. But, who am I to tell someone that they are wrong for preferring a less expensive cut or location? "Taste" is subjective. And I understand the placebo effect argument, but if someone is on a placebo for pain treatment and they actually feel better...then something has worked for that person, correct? If someone can hear a difference, imagined or not, then whatever price increase their wallet is comfortable with is valuable for their level of satisfaction. If you are buying a $50,000 theater system and would like to skimp on cables as the weakest link, that's your choice, but you probably aren't the main demographic of Monoprice.com to begin with.
Just my opinion. Do with it what you may!