do you backup offsite? if not, in the event of a fire, your data will live under your "poof!"
Once a month or so, I plug in two separate 5TB external HDDs and run a backup script that rsync's everything to each one (2 is 1 and 1 is none). These are stored outside my home.
I should probably get some kind of cloud-based / encrypted backup thing going as well. I don't claim that my current backup system is very good.
I recommend Backblaze B2 - $5 / TB, and supports s3's api.