HiFI Fuses ?

Wow. I got out of this addicting hobby about a year ago. It took a lot but I did it. Still think back sometimes. But the thrill is gone. I am using old crap stuff right now and for the last year. Sold my gear and running Vandersteen 2c and Musical Fidelity electronics. Boring. Fine.
Just got a copy of Music Direct catalog. Now they have advanced HiFi fuses that will improve the sound.
My god I miss this type of stuff. I could have a field day with this type of info here at AG.
Wonder how much they cost :)