Agamon
Adventurer
Ranger REG said:For me, "core only" is the material from the first three D&D rulebooks (PHB, DMG, and MM1).
The SRD also provide expanded material including those from Expanded Psionics Handbook, Deities & Demigods, and Epic-Level Handbook
Even the MSRD went beyond "core," providing material extracted from Urban Arcana, Menace Manual, and d20 Future.
Okay, but how does that make the SRD unusable to those that play exclusively core? The psionics, gods, epic and Unerathed Arcana (and Modern) rules are listed as seperate sections in the SRD and very ignorable (I don't use any of those books, but do use the SRD during play, and haven't once stumbled upon any rules I don't use). If you play core only, the SRD is a great resource.
Once you add the Complete books, the Environment books, the theme books, the non-MM monster books and the Compendiums, the SRD becomes less complete with respect to fundimental game aspects (classes, feats, spells, etc) and the SRD, while still useful, isn't a complete resource.
If there is an SRD for 4E (a big if, I'd assume), it'd be core only at first, just as it was for 3E. I'd like to see it, not only to see the 3rd party market flourish, but because it's handy as a gaming tool.