Hmm...if I'm honest, I have to say I'm a chronic collector. Not a hoarder, but certainly a collector.
For the long haul - records, CDs, music memorabilia. As a recovering music journalist, the stuff just rolled in from promo/PR companies and record labels for years. Now, though, I'm definitely discriminating, narrowing down to just a few artists, labels, and genres. Was a completist for New Order, Orb, Aphex Twin, Muslimgauze, and Autechre among others. Now am getting deep into Boris, Sunno
)), and Nadja/Aidan Baker.
More recently - Sheperd Fairey/Obey Giant prints. The original, signed editions.
On and off - watches, pens, vintage audiophile gear.