DVD and Blu-rays (over 1000 mostly from small labels like Arrow, Masters of Cinema, BFI, Blue Underground, Severin). I have a multiregion Blu-Ray player so I never need to worry about where the discs come from. I spend far too much money on them but then again, I don't go out drinking like other people.
CDs (again, around the 1000 mark) but not so much anymore. I get a little obsessed over individual artists (Miles Davis, Sunn o))), Bjork) sometimes and end up buying entire discographies. I have over 100 Miles Davis CDs
Books. I had a silly amount and had to get rid of a load as they were taking over the house. Nowadays I mostly buy them for my Kindle.
With any interest I get into (archery, climbing, free-diving, camping etc) I'll usually end up buying stuff for it. The research is always the funnest part though.
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Diagnosed: Asperger's Syndrome (ICD-10)
Self-Diagnosed: Aphantasia
Your neurodiverse (Aspie) score: 152 of 200
Your neurotypical (non-autistic) score: 46 of 200
Listener of all things noisy, viewer of all things bloody, writer of all things sh*t.