Other official compendiums you'd like to see?

[Edena_of_Neith]

The Compendium of Feats.
The Compendium of Prestige Classes.

 

[Li Shenron]

I really like the feat system, so perhaps a Feat Compendium would be the only one I'd consider buying.

A Magic Item Compendium could also be useful, and is the most likely to be printed IMO together with a Prestige Class Compendium, which instead I would never buy.

 

[amethal]

A monster compendium. Updated with the errata

With appendices listing monsters by type, CR, terrain, alignment, size etc.

Of course, it would be a million pages long so I suppose it could only be available as a PDF.

 

[Dog Moon]

I'd like to see Magical Items, definitely, and even mundane items/special materials/armors/weapons/etc, the Complete Guide to Nonmagic Equipment or w/e.

A Complete Guide to Base Classes with all the finished ones plus multiple variants like those in Unearthed Arcana. I'd buy that 'in a hearbeat.'

I would also like to see a Complete Monster Ecologies such as those in all the older Dragons, though I think some have been done in 3e too [been a while since I bought Dragon], though they would have to update some of the information to 3x. Those were fun to read and gave much personality to different creatures. I wouldn't complain if they added extra information though.

 

[philreed]

A Complete Guide to Base Classes with all the finished ones plus multiple variants like those in Unearthed Arcana. I'd buy that 'in a hearbeat.'

You might find this interesting.

 

[Olgar Shiverstone]

A Feat Compendium? Heck yes!

Class/PrC Compendium ... maybe.

An updated Greyhawk Campaign Setting? Heck yes!

Races Compendium ... no. Race books are sufficient.

Monsters ... no, the MMs are sufficient.

Equipment ... maybe and updated 3.5 A&EG. Maybe.

I'd also like a magic item compendium, with all items published so far, to include artifacts.

 

[Li Shenron]

A monster compendium. Updated with the errata

With appendices listing monsters by type, CR, terrain, alignment, size etc.

Of course, it would be a million pages long so I suppose it could only be available as a PDF.

Mmm... but a monster compendium is not ALL monsters published, at least if we're taking Spell Compendium as a reference, it will have the BEST monsters published.

I think it's an unlikely product because monsters are probably more than spells (and anyway they take much more space in a book), but it will be much harder to agree which would be the "best". Anyway Spell Compendium probably has nearly all spells from a few books at least. Space would never allow the same thing with monsters...