I’ve seen many people have insane setups to download things automatically and NAS’ with tens of terabytes of capacity, which i don’t understand at all.
I have a 1 tb drive from 2013 of which I’m using ~850GB and most of the space is used by series i have already watched and haven’t bothered to delete.
What are you storing to need so much space and how are you finding so much good content that you actually want to save?
Typically I’ll check IMDb for the More like this section and go from there. It’s how I found out about Jeff and Some Aliens and The Life and Times of Tim.
Some media is also hard to come by so people might fear deleting content that might not be easy to get back in the future.
Look at all the semi-lost media where there’s only a segment of it that exists on YouTube