Are you a professional horder? Do you consider dumping any of your tat to be executing a friend?
I horde all sorts of things, I refuse to throw anything away if it may have a use. I refuse to delete things off my discs if I may EVER need to refer to them again. (Hence the 5TB of storage).
Apart from data, I horde cables obsessively, and computer parts almost as badly....I mean you never KNOW if someone might need a spare 486dx2
I used to horde videos, tapes and dvd's but that's all pretty much been replaced by versions stored on hard disc.
I also have 11 PC keyboards and about 15+ mice. I find it so hard to get a keyboard that I love, but can never bin the old ones....cos...well....you never know when all 10 of the others might simultaneously fail in the middle of the night when I have an important rant to inflict on you lot.
'Fess up!
(Jemmy, don't waste yer time, your house is WAY too tidy ;) )