I could see that getting filled up easily with a vast 1080p TV/Movie collection. Movies coming in at 1080p eats up disk really quickly.
Uncompressed 4k @ 24fps, at 10bit color comes in at 324MB/s, so just being a wedding videographer could be 1.1T per hour of video. Any given small project could eat up 15-20T per project.
I never said I required this much for personal use...I just have it. :)
I started with 12 x 4TB in one NAS and I filled it in a little over 2 years. I just recently built a second NAS with 20 x 6TB to last me hopefully for the next several years.
The other remaining drives unaccounted for are in two workstations for local storage.
Uncompressed 4k @ 24fps, at 10bit color comes in at 324MB/s, so just being a wedding videographer could be 1.1T per hour of video. Any given small project could eat up 15-20T per project.