I use a USB-attached drive array for some bulk, low-throughput storage. I’ve been happy with this, except for one thing that I didn’t think about prior to getting mine: a considerable number of these, including mine, do not have the option to power on after power loss. This is extremely obnoxious if you use or have any intention of using the computer remotely and would like it to come back up after power loss. For me, it was the only component that couldn’t be brought back up automatically.

I’m in the process of switching to one that does right now, but I’d mention it to you to as something to keep in mind.