Is $2,844 too much to pay for a fuse?

No, you obviously can’t name a good amp today that uses fuses on the dc side.
Like I said a fuse anywhere on the dc side of an amp is useless and even detrimental even on the speakers, no matter how much they cost.

Fuses are in line for setup and tests and then replaced with N45 cryod magnets because they make the most of the music and can be oriented to follow the signal path.
Tom

it is $28.50 for 5 - not  $2844

it is $28.50 for 5 - not  $2844

Fuses are in line for setup and tests and then replaced with N45 cryod magnets

Absolutley https://youtu.be/YTY26k0CA0I?t=4