I'm not going to say you're not a true PC enthusiast if you don't have a few old SATA drives kicking around in drawers and old rigs, but it's incredibly common. It could be an old 500GB HDD pulled from a laptop SSD upgrade, or your first 256GB SATA SSD that got kicked to the curb when you upgraded to an NVMe drive. It can even be that 2TB HDD you bought for your main rig that you planned to use as game storage, but ended up sitting idle. Whichever it is, the instinct to toss them or let them sit in your drawer forever is a mistake.