I have surplus/military bare cables dating from the 1970s or so, extra shiny silver plated copper with PTFE jacket: a joy to solder, then more "normal" ones from the late 80s and 90s, then "old" modern ones, that is, power/audio/data cables usable with recent stuff. I'll never throw away any of them because unlike most crap they bundle with consumer devices today, they're made of real copper. Take a cheap cable bought today and chances are that it either sticks to a magnet, meaning it's copper plated steel or other crappy alloy, or it doesn't and it's super light which indicates it's made of aluminium; in all cases not good where power dissipation can be a problem or where resoldering may be necessary. Keep old cables!