DC has been putting out these Showcase tradepaper backs - phone-book sized compilations of older comics in black and white. At $16 for 500 pages, I figure they're a bargain (it's in imitation of Marvel Ultimates.) I've purchased two of them - "Superman Family", which was largely Golden Age Jimmy Olsen plus one Lois Lane, and "Teen Titans", which were their first two appearances plus the first 18 issues of their own title.
( Superman's Boy Pal )( Teen Titans! )