crustshow, 110 isn't so bad. I just blew a 7 amp fuse (and four diodes) when I plugged a bridge rectifier rated at only 1amp in backwards. Nearby light dimmed and there are some nice little metal balls (vaporized fuse wire that condensed) on the glass. Aside from the very mild audible pop that's what they're designed to do. The only reason I can think for a fuse being extra expensive is if the fuse itself is being used as the shunt for the current reading, but the only meter I've ever taken apart had an internal shunt seperate from the fuse.