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
I just scoured the net and came across some older posts on other sites and the only difference I read was that one is cryo'd and the other is not.
It wasn't clear which one is. There's no mention of silver used on the box the PADIS comes in. Just high purity copper, OFC, non-magnetic metals and rhodium. Time will tell.

All the best,
Nonoise

"I feel like all the air just went out of this thread"

@nonoise ~ I feel your pain bud.

I can somewhat imagine OP anxiety, what can you possibly expect from a $25 fuse in a $60K system that already sounds great.
It is not a heart or a kidney transplant. Just try them and see what you think.

Dave