But you can get enjoyment from reading hard/old things.
Driving to a great view might not be as enjoyable as hiking to an ok view.
But Philip K. Dick is crap. Not cool to say it. And like you say might have been great for his time, but try and read "Do Androids Dream of Electric Sheep?" it's plain awful.
But you can't tell me you wouldn't love to see a musket battle, some of the classics are still around because they were good.
OT: I find Ursula K. Le Guin work just ok. Very overrated. But it's not hard to read something like Earthsea and you can then say you've done it.
As a ton of SF, his themes and the ideas behind are still really interesting, but it lacks a ton of polishing work.