Are audiophiles still out of their minds?

I've been in this hobby for 30 years and owned many gears throughout the years, but never that many cables.  I know cables can make a difference in sound quality of your system, but never dramatic like changing speakers, amplifiers, or even more importantly room treatment. Yes, I've evaluated many vaunted cables at dealers and at home over the years, but never heard dramatic effect that I would plunk $5000 for a cable. The most I've ever spent was $2700 for pair of speaker cables, and I kinda regret it to this day.  So when I see cable manufacturers charging 5 figures for their latest and "greatest" speaker cables, PC, and ICs, I have to ask myself who buys this stuff. Why would you buy a $10k+ cable, when there are so many great speakers, amplifiers, DACs for that kind of money, or room treatment that would have greater effect on your systems sound?  May be I'm getting ornery with age, like the water boy says in Adam Sandler's movie.
Jafant, there are a lot in this range with some starting below $100. And like I said cabling is highly system dependent, and the only way you’ll find out if it’s good for you is to try it out in your system. Some of the manufactures I can recommend are dB Audio Labs (USB cable), Signal Cable (ICs and speaker cables), DH Labs (power cord), Grover Huffman (ICs), Triode Wire labs (power cord), Ridge Street Audio (sorry defunct but you may find used), Kaplan Cable (now Waveform Fidelity), Reality Cable, etc. Don’t let the affordable price fool you. Most of these manufacturers will give you a free in home trial, which is critical. Good luck.

You remind me of the guidance I received from a mentor as a young man. He always counseled his colleagues to treat those lacking knowledge with respect as most are good people doing the best they can in life, but always be mindful of people lacking knowledge to such an extreme degree that they do not recognize they lack knowledge. They are the dangerous ones.

Through that deficiency into the mix with the pathology of a child that was incessantly beat-up on the playground as a grade-schooler and threads like this get started. 

Watts, we don’t need to hear about your life story here. What’s with you and the psychoanalysis? You’re an engineer by your own admission. So you failed as a psychotherapist in your past life, and I'm sorry for your past failings. But this is not the forum to solve your personal problems.
Joecasey it's pretty simple really.   It's called having a rational discussion.   Personal attacks are the thing not called for.