Just went/still going through a vicious residential downsizing. In multiple boxes of cables, only IEEE488 and Centronics plug types didn't give me nightmares to toss. Oh, and the remaining spool of 300-ohm TV antenna cable. Kept some RG59 and associated tools, don't really know why.

Depends on if you reasonably expect to encounter one of those devices again and if the future cabling is backwards compatible.

Using your list I'd likely keep one IDE and comoposite video cable, but toss the RG59 and CAT5 because I could use a current RG6 or CAT6 cable in their place.

You get into vintage computer collecting and regret all things that you tossed...