It's more common than you think.

Dustin, from Smarter Every Day, has millions of subscribes and keeps his backup copies on old hard drives loosely placed into plastic containers. He also causally tosses them around.

He's hardly and idiot but...

Here's the video where Linus sets him up a 160tb server to replace his old "backup solution". https://www.youtube.com/watch?v=lcWSrIiR1tY