Is a confirmation bias so overwhelming that it results in mass insanity. How has the thread gone on this long without any members trying to save you from yourselves. Save your money, I have a good idea that people like you will need it.
Perhaps, it is because they don't need saving. Perhaps, they have done the listening and Even A/B testing. Perhaps, they have trained ears from listening for years and years, critically. Perhaps, they are open to hearing and learning new things without fear of ridicule. Perhaps, they have better gear than you. Lastly - perhaps, you are wrong in passing judgement on others experiences.
Perhaps.
OTOH, I prefer ceramic body fuses, wrapped with a vibration damping material (thin adhesive lead foil) inserted into a cleaned a graphene treated fuse holder. This is a potential for disaster when done by anyone that isn't completely anal about methodology, but I'm "that guy". Yes, this insanity results in a little bit better SQ. Superior audio SQ is a battle of inches, not miles.
YMMV