I'll add two more: Noise. Feeling. Solid state devices always felt more durable to me. I know I won't use too many writes on the NAS, but mostly read. And th

I'll add two more: Noise. Feeling. Solid state devices always felt more durable to me. I know I won't use too many writes on the NAS, but mostly read. And then there's "rare" access time: If you don't want to spend power on spinning disks, you need to wait some time for them to spin up if you want to access your NAS.