Albert has a fair point. He's listened to the normal fuse, ceramic fuse, and the $25 fuse. He can hear a difference.
Timrhu asked "pile one" So seem like his request was granted!
I think the main point here is, you can't really question someone who has taken the time to listen vs someone who is basing an opinion with out listening.
I've used normal fuses vs ceramic. I can hear that. It was worth the $1.50 per fuse. All your power flows through this little thing, so if you can hear power cord changes, your chances of hearing this a pretty good.
BTW, I can also hear the contact cleaner improvements when used on the fuse and fuse holder. Pile on.