Why don't amplifier Companies use high end fuses?


My equipment - Raven Integrated Reflection MK2 tube amp 58wpc. / Lumin A-1 DAC Streamer / Synology NAS / Isotex Aquarius Power Conditioner / Furutech Rhodium Plug / Sonus Faber Amati Homage Tradition speakers.  

I have read thousands of comments on upgraded fuses improving the performance of sound.  I am very open minded but not sold either way.  So, the question I have is....if fuses were so important, than why don't Amplifier companies all install them as OEM equipment?  To me, if they are as good as people say, that would provide companies who use them a competitive advantage?  

Every High End Audio store I go to in Phoenix have told me it does not make a difference and is a waste of money.  For the record, I have fuses purchased at an automotive store for under $10 and I think my sound is awesome.  The Company that built my amp tested the Synergistic Fuses and he emphatically said there was no difference.  

If I were to try a fuse for fun, given my equipment, what would your recommendation be to try?  
willgolf
The reason I have not responded in two months is simple.  It turned into a hotly debated subject with neither side willing to lose.  Second, I accomplished my objective in trying a few different fuses.   Third, I shut my email off regarding this subject because my in box was getting overloaded by the responses  
Very unscientific, but I thought the sound improved with improved fuses in my gear in my environment (Synergistic).  I did blind A/B testing with a friend and (unknown to him at the time) he preferred the Synergistic over the stock fuses. I put them in all my audio gear now (the ones that have easily-accessible fuses). Really enjoy the sound of my systems!
I'm thinking some smart entrepreneur could sell gold plated circuit breakers.Would be a great business.Maybe some special wire,going from the panel to whatever outlet is used.
Been there, done that! Well, not me personally - especially now that I’m free from the house AC altogether 🕺 - but cryod Hubble outlets, cryod Romex, and cryod circuit breakers, even entire audiophile grade panels, were sold 15 years ago. You could also have had your Romex broken in on the Cable Cooker. Of course, the enterprising audiophile can do all these things himself today. Hel-loo! Speaking of which, anybody cryo his high end fuses? I kinda doubt the manufacturers have the time or inclination. 
kosst_amojan
The reason you can’t measure feet and springs is the same reason you can’t measure the difference a fuse makes. It’s because it makes no difference. Those who claim it does bare the obligation to prove it and so far there’s no proof. It’s just your mind telling you that expensive must sound better so you hear it.

>>>>Wow! Hey! I don’t think I’ve seen anyone make such a uh, bold statement in years. Maybe you should consider changing hobbies. I don’t think this particular hobby suits your temperament or scientific inclination. Didn’t you get the memo? There is no obligation for anyone to prove anything.