I have 65TB of media in my collection and growing.
The point isn't that I'm going to consume all of it, but that I have all of it to consume.
People would buy encyclopedia collections, but they wouldn't normally read them cover-to-cover, it was just nice having a big reference.
Downloading 40,000 hours of obscure music isn't about listening to all of it, it's about shuffling it and discovering hidden gems.
Downloading 5,000 movies isn't about marathoning movies full-time. It's about having my own personal Netflix, but only with the stuff I deliberately gathered.
Downloading every single PlayStation / Sega / Nintendo game means that I can take gameplay requests instantly from friends. Nobody asks "do you have x", they know I do. We just play games.
Same with Karaoke. The more songs the better, that's why I have 150,000 karaoke tracks. Even my Japanese and Korean friends get what they want.
I remember when you used to collect hot loads in college bathrooms. It was like a tradition random dudes would be like "Do you wanna drop one into this random guy?" You didn't turn down anyone, not even the tiny Korean and Japanese ones. They would gunt with satisfaction and say, "Thanks Vaping Toilet Todd, you really are a good friend." When you went to reply only hot steam would come out. Anyway I'm glad your still into collecting sorting and cataloging.