TrippyHippy
Hero
I prefer to see 'Races' considered as a collective for each respective fantasy setting. The reason why Elf\Dwarf\Halfling\Human (and Orc) works is because they are all taken from one setting (Tolkien). You could look for symbolic connections pertaining to each of these, but the reality is that they are simply very familiar and immediately suggest a particular world and attitude, that players can build their imagination from.
When you add to these, then you inevitably create a feeling of diluting the feel of the world.
This is not to say that there can't be other Races to choose from (my view is that the game should be able to support any race from the Monster Manual as playable characters). It's just that I'd like to see them chosen collectively in the context of a world design. This can be done easily enough in setting books. For the core books, however, I'd just stick with the Tolkien races as default, and the suggestion that the DM can add more as she/he feels fit for his/her world.
When you add to these, then you inevitably create a feeling of diluting the feel of the world.
This is not to say that there can't be other Races to choose from (my view is that the game should be able to support any race from the Monster Manual as playable characters). It's just that I'd like to see them chosen collectively in the context of a world design. This can be done easily enough in setting books. For the core books, however, I'd just stick with the Tolkien races as default, and the suggestion that the DM can add more as she/he feels fit for his/her world.