This post is an attempt to focus on the important things. I know there is a new edition on the horizon, and similar to shows like American idol, many classes are in the race but they will be voted off the island until only a small number will be left to appear in the PHB. And no matter what the selection is, there will be a big fuss by fans of class X and race Y that didn't make it in, and complaints by haters of class Y because it was included.
Then splatbooks and magazine articles will cover all the archetypes until the process is repeated for 6th edition. In the end, the difference is whether a certain archetype is abailable from the start or whether you'll have to wait for a year or two.
The interesting effect is that at the early stage of an edition, you'll see a group with an elven wizard, a dwarven fighter, a human cleric, and a halfling rogue, and towards the end, a party with a genasi artificer, a warforged swordsage (or swordmage), a goblin assassin and a githyanki psion.
So is it important whether something is "core" or not? As DM, I only ever have to worry about 5 races and 5 classes (if I have 5 players), because that's what is at my table. If my player wants a githyanki PC, then githyanki are core for that campaign. It's really kind of simple.
Then splatbooks and magazine articles will cover all the archetypes until the process is repeated for 6th edition. In the end, the difference is whether a certain archetype is abailable from the start or whether you'll have to wait for a year or two.
The interesting effect is that at the early stage of an edition, you'll see a group with an elven wizard, a dwarven fighter, a human cleric, and a halfling rogue, and towards the end, a party with a genasi artificer, a warforged swordsage (or swordmage), a goblin assassin and a githyanki psion.
So is it important whether something is "core" or not? As DM, I only ever have to worry about 5 races and 5 classes (if I have 5 players), because that's what is at my table. If my player wants a githyanki PC, then githyanki are core for that campaign. It's really kind of simple.