As a collector of strategy guides, I can honestly say there's just something about the way they feel. Having a whole tome of knowledge at your fingertips is very satisfying, knowing that, should you require aid, you can turn to it and the solution will be there, in great detail and with images to make it visually appealing.
It's something FAQs, for all their uses, will never quite replicate, in the same way that a Kindle will never replace real books (well, for me they won't, anyway).
Anyway. I completely forgot to mention it earlier (because I'm stupid and such) but pretty much anything from
this exhaustive list fits under the thread topic.