Do you store all your media? And how?

For a piracy-oriented community I'm surprised this isn't discussed as much.

Do you ever store media, or delete them after watching? How do you store them?

I personally have 12TB worth of hard drives (3x4TB) in a JBOD configuration. Been wanting to upgrade my hard drives (they're 6 years old) but I'm still a little skeptical of the helium drives and whether they will last...