I miss huge game manuals... Most of them I read and then dismissed but the one that always sticks in my mind is the Homeworld GOTY manual bundle. It was literally the standard manual, coupled with an 'extended manual' that was a good 100 pages long, packaged along with the Prima Strategy Guide all in the same 9"x12" box that was standard with video games at the time. Seriously, it was a novel and a half of manual, and it was freaking awesome. I was so disappointed when games started coming out in the paperback-book sized boxes, and now they're just DVD cases, and not even decently durable ones at that.
Eco-friendly can kiss my ass, I want my huge cardboard boxes and novel-manual hybrids packed to the brim with lore, storyline, and tutorial back.