I know this sounds stupidly overcomplicated, but I almost like the idea of characters developing tastes.
Like, if you start out early game reading a lot of comics for entertainment, because that’s what you have, then your character will start to get more enjoyment out of comics, and less out of unrelated stuff. A good sci-fi novel will still perk you up, but romance? Pff. Boring. Or maybe you’re really into all these technical manuals you found, and now anything that doesn’t have a real-world application you just find kind of stupid. Could be a nice drawback to spamming skill books, losing interest in other forms of entertainment.
Just an idea.