Best fuses for under $50?

Al, I do the same. You should see how long I take to drive away once I start my car. I still shudder when I see someone start their car and immediately drive off. That engine won't last for long.

All the best,
Nonoise

Inrush currents from moment of switch on, can cause a fuse to be weakened by many said inrush turn on’s, to a point of blowing one day, here's a visual proof.
https://i.stack.imgur.com/0uqWX.jpg

Cheers George

Just as a note, I had a high current B&K amp a long time ago.  It tended to blow fuses, and it turned out to be an IEC cord that was really loose on the IEC connection end.  If the power cord plugs do not have a good tight connection, it can sometimes arc and cause the fuse to blow.

I have no qualms with the images of the fuse that George posted. I suppose they are of the same one as it ages. That is the type of fuse I avoid using: a bog standard one, made to a price point. 

Again, 😩, a better made fuse can be had if you're willing to pony up for it and it doesn't need to break the bank. 

All the best,
Nonoise

 That is the type of fuse I avoid using:

All correctly implemented fuses are close to their blow point in normal operation, as if anything out of the ordinary should draw more current that's not normal it should blow to protect and keep the circuitry/pcb's from being fried to an absolute minimum.

The fuse I linked to, shows what many switch on surges can do to ANY properly implemented fuse. As current draw at "switch on" is when an ac mains fuse is taxed the most, and when weakened ones, that have seen many switch on surges can blow, even though there's nothing wrong elsewhere.

Cheers George