Henry said:
Besides, if one were using "core" in that sense, what makes Complete Warrior different from Player's Guide to Eberron, anyway? I see no difference, myself. If one can justify a Hexblade, one can justify a Valenar Revenant Blade by giving it history and background appropriate to the world - it's only mechanics, and the balance thereof, that really make the difference between the 3 base books and anything else.
I think that WOTC sees books in the same way my group of friends do and want everyone else to as well.
Whenever anyone starts a game here, it's implied that ALL WOTC books will be allowed with the exception of campaign setting books. In the way of thinking of the people I know, it's OBVIOUS that if something is in The Player's Guide to Eberron, then it is designed to be used ONLY in Eberron. If it is in Complete Warrior, then everything in it can be used in any D&D game.
The implied setting of D&D(at least the implication I get when reading pretty much all the 3.5e books) is "All D&D worlds are fantasy worlds where nearly anything you can think of might be out there somewhere and no one knows absolutely everything. There might be a country on the other side of the world where Shugenja and Samurai live. No one knows, since no one has explored all parts of the world. There is enough wiggle room to have everything in all these books somewhere in the world. So, it is assumed they all exist somewhere."
Whereas setting books say "This is the PrC who elves who live in this country have due to the political nature of the region".
It's easy to say "There are a group of arcane magic users who call themselves Warlocks in this town who have made pacts with demons." vs "There is a country called Valenar, where elves live and some of them are specialized in riding horses and using double bladed scimitars and the ones that are sometimes take this Prc."
It's a difference in perception. My group of friends perceive all the books to be useful and "part of D&D", so they buy them. Others perceive only the Player's Handbook, Monster Manual, and DMG to be D&D and the rest to be optional add ons. WOTC wants to(rather wisely) shift the perception of others so they view ALL books as D&D, since they're more likely to buy a book if they feel that it will be useful in ALL games they join. I'm guessing that a LARGE number of people bought the PHBII and the DMGII and the Monster Manual II. So, they realize that if people think a book is a "continuation" of the "core" of D&D, they'll buy it. If they redefine core as all of their books instead of only a couple, more people will buy them.
I'm sure there is a lot of people here who won't fall for it. However, in general, it will work. Plus, more people will buy a book that has new classes, new equipment, new feats, new spells all in the same book. Complete Warrior has all that, but a lot of people won't buy it because they like playing wizards. Call that same book "Player's Handbook 2" and spread out the theme of the classes a bit more to ALL the archetypes and suddenly you have double the sales.