MerricB said:
You might be surprised at how little really needs to be reprinted.
Ability scores.
What's a roleplaying game, dice notations, and other basics (not much in 3.5e, but maybe 4e will be more newbie-friendly).
Glossary.
Combat.
Skills.
Basics of feats.
Basics of classes & levels, including multiclassing.
"Adventuring" -- overland movement, lighting, encumbrance, etc.
Alignment (however it works).
Basics of non-mechanical character stuff, maybe.
The "core" deities (even if there are no divine-powered classes, presumably they'll still include stuff like that).
Coinage, armor, weapons, and other equipment.
It gets to be a fairly sizable list. Glancing at the 3.5e PH table of contents, it's about 120 pages -- more than a third of the book.
With repeated info, by PH IV, one will have essentially paid for 1280 pages of material but gotten only 920 pages -- slightly less than three books for the price of four. That doesn't sound like a good deal to me.