This took a lot of deciding on my part...
Exhibit A: Deities & Demigods -- gods don't have hit dice, neat categories, or weapons that do specific amounts of mortal damage. Gods are beyond all that. So the book has little use in my games.
Exhibit B: Manual of the Planes -- I never got into the whole "planes" thing. I accept that the gods live somewhere other than here and all like that, but this book always struck me as overly mechanistic. Again, no use in my games.
Exhibit C: Arms & Equipment Guide -- err, well, I either already had or made up on my own all the equipment I needed, so this book seems redundant.
Exhibit D: Savage Species --I get more than enough mileage out of the base races. Didn't see a need for this; it's easy enough just to plug character classes onto sentient creatures, if you need that.
Exhibit E: Epic Level Handbook -- Been spendin' most my time livin' in a Munchkin's Paradise...
Exhibit F: Stronghold Builders Guidebook -- I know what castles look like, how they are constructed, etc. I rarely get into siege warfare in rpgs, mainly because it is long and boring, so no need for this book.
Exhibit G: Book of Challenges -- how to construct traps that do not logically fit with the technological achievements of the age.
I finally went with Exhibit G, The Book of Challanges, mainly because it annoyed me the most.
OTOH, I know people who like each of these books and I would never tell people NOT to buy them. Hey! if you like the book it is good for you, even if it isn't good for me. In the end that's what it's all about
