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

There are no nano powders or components that could go into that fuse to make it cost even a fraction of that price to make.When you look at things usually used in higher end fuses like silver wire (cost negligible in something as small as a fuse), silver caps (again not that expensive here as they are tiny and thin), then somewhat common passive materials used for a/v products like piezoelectric crystals (quartz, rochelle salt, etc. all inexpensive all easy to find), and tourmaline (inexpensive and plentiful), then on to more exotic materials like graphene, graphene based carbon nano-tubes, ceramic powders, rare earth powders, ferroelectric material powders, perovskites, cathode powders, etc.; all the interesting materials that may have an effect, none would be able to fill a fuse and end up costing anything more than $300 for the more rare materials (like say Barium Strontium Titanate or Lanthanum Strontium Cobaltite, both of which wouldn't end up costing that much for the amount to fill a fuse).
From the pictures the fuses looks like they have a glass body and only have a wire on the inside though so I'm assuming all the extra material is in the wraps (which I believe is similarly the case for Telos Audio's fuses, I know Acme Audio Labs use their Crystal Fiber Compound on the outside of their fuses, but those are only $20), there is no real possibility that the wrap contains hundreds or even thousands of dollars worth of materials.

I'm not saying the fuses aren't excellent, but there seems to be unprecedented levels of markup going on here.
I know I've paid for tweaks that have components that have materials in them that cost only a fraction of what they sell for and aren't exactly labor intensive (not that that is the totality of the price since one has to consider r&d), but I've never owned anything that has a markup like this seems to.

This all goes for the outlets as well. There are outlets out there that use pure silver contacts that cost a fraction of these.

Maybe the exorbitant price of their super high end stuff is just skilled marketing to get people like us to talk about the fuses and outlets and get their name out there to sell enough of their $28 fuse which may be where the real money is made?

I didn’t realize that the fuses were red and black. No wonder they eliminate "bottleneck distortion!" The black absorbs all light and therefore gathers photons. The red color reflects other photons. the push-pull of absorbing and reflecting photons obviously causes the electrons to spin in reverse polarized directlons, hence eliminating that dreaded BND. After reading this thread, I keep wondering how my system would sound if it wasn’t suffering from BND? Who knows many extra "poles of articulation" I might get if I could just get rid of the BND?

Well it all depends what you get by installing this fuse.
Eg having a Dan DAgustino Momentum preamp, will an update to the HD Momentum prised around 10k give you a better sound or will the 3k fuse?
I think I might have been trying about 7-8 aftermarket fuses over the last 2 decades and they have been a very nice expirience every time.
Some of my cabels are at a used price around 6-7k and I value them very much, they are really worth the price and I haven’t found any cheaper that can do the trick.
so if this fuse really delivers what the reviewer tell us, I think it might be worth a try, if I can get a trail on 30 days.

if you make $20 an hour it is