Thanks to these threads I've started pulling out my lower grade Warren readers the past few weeks (currently reading a water-logged copy Vampirella 40). It's fun to dig back into these after about ten years of collecting PCH and reading moderns exclusively. You could read probably a half dozen moderns in the time it takes to get through some of these mags (even longer if you count the time spent checking out the ads).
I've got a bunch of the archives, which are nice, but it's way more fun to read the magazines.
I'm mostly set now until we get to the top 10, but that stretch has my wallet scared to death