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
Look, it’s really the same thing as the Dunking Chair. The Dunking Chair was used to find out if the suspected witch really was a witch. 🧙🏻‍♀️If she died in the Dunking Chair she couldn’t have been a real witch, since a real witch would have been able to save herself. Of course nobody survived the Dunking Chair. There was a hitch. Here we have naysayers and pseudo skeptics who either can’t hear differences between fuses or won’t try, claiming the whole thing’s a fraud. Basically claiming it’s witchcraft. This is why the naysayers’ argument comes down to superstition, just like the witch hunters of Salem, Mass.





Not sure what provoked all the personal insults and attacks, but I'm not dealing with it.
Maybe starting off by calling people liars would be good place to start looking. Pontificating from your high horse under the delusion that anyone here looks up to you could be another. Just saying.

All the best,
Nonoise
Not to cut straws but there is a difference between calling someone a liar and not believing what people say they hear.   Nobody can  hear what another does exactly the same way so why take offense at that?  OR if they do not believe in fuses?   If one is sure one does, who cares what others think or say?   
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I’m pretty sure it’s just a bad case of audio nervosa. You can get it from obsessive compulsive behaviors such as participation in the Blowtorch thread on DIY a little bit too much. 😡 Take two placebos and see me in the morning.