We will never know.
Why does it matter? As long as he's enjoying stuff and not hurting anyone then let him enjoy it.
Having a refined taste and liking crap are just two terms for the same idea. It's like eccentric and crazy.
I thought it was, "If you're rich, you can be eccentric. Otherwise, you're just crazy."
A friend of mine confessed he'd read all 200 Star Trek books (as many as had then been published), and every single one was utter crap, but he couldn't stop reading them. I was going to admonish him for wasting all that time, but then recalled I'd read all 182 Doc Savage novels, and was re-reading them, so kept my mouth shut.
This man has achieved enlightenment.
Well, if you're going to like crap, it might as well be total. No half-assed crap here.
Me and those 80's black and white indy comics.
This explains the entire fine-art world today.