Dire Bare said:My assumption is that I'll what the big three core books to prepare for my game, either as a player or DM. Then, at the game, I'll just need the Rules Compendium. That sounds cool to me.
Mercule said:I'd be happier if I needed the Rules Compendium, plus the three core to plan and run the game and could ignore the Complete series in 90% of cases.
If the RC has any meaningful overlap with the core three, I won't be picking it up. My hope and interest is in it doing for various rules bits what the Spell Compendium and (presumably) Magic Item Compendium have done for their topics. That is, take the good ideas from the expansion books and gather them into an easier to reference and carry format.
Jer said:It may include a Feat Compendium (in fact, I wouldn't be surprised to find out that it started life as a Feat Compendium and turned out to not have enough "meat" to be just a feat compendium).

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.