I’ve never built a NAS before, but I'm considering it to help me consolidate my data
on top of all the personal data I have I run Computer business out of my house and I end up imaging multiple machines a day.
I find my gigabit ethernet network slow, I know I could make the transition to 10Gb ethernet and I might have to but considering the cheapest NICs I see on newegg are about $300 each I'd rather not if I can avoid it.
For most of my needs e.g. the personal media servers I'm going run etc I don't need faster than gigabit, but at least for my imaging machine for work I want