I love density of ideas. I love books like Snowcrash and Distress simply because of the idea-per-page quotient. The IPPQ slingshots you out from the book and into the world that it’s pages happen to cut across. You stop and move away from the narrative and unpack the ideas; and in books with a really high IPPQ you can barely catch mental-breath as even the most throwaway lines unfurl like idea-origami.
No pages as such… but Idea per PANEL quotient in The Spiders is through the roof. The alternate war-against-terrorism as prosecuted by President Gore is mind-blowing. Ecstasy Bombs, non-lethal laser weapons and live chat with Taliban soldiers via tiny remote-operated robot spiders… Incredible stuff.
Petafloptimism 
You should check out Warren Ellis’ Transmetropolitan, which has a similarly stunning idea-per-panel count.