I'm fine with playing a human for now, and I would be fine with it if Anet never decided to add new playable races. I was sort of hoping to be able to choose between a few races when I first started playing the game, but after playing for a little while I saw that it wasn't really necessary.
Some of the other posters in this thread are right, Guild Wars is trying to accomplish something original here - both in terms of content and game mechanics. That's not to say Anet should actively try to differentiate itself from WoW in every aspect possible, but they should feel free to pursue whichever creative path they choose (and not feel beholden to pursue whichever path they choose not to). Almost half of the complaints I read about Guild Wars is that it breaks from MMO "tradition", and that it should conform to certain fantasy standards (even though there's no such thing). Just to point out, by purchasing and continuing to play Guild Wars, you are supporting the gameworld created by the developers - it's like saying "I hate 'House', but I'm going to flip it on and watch it anyway."
....um, back on topic, if Anet decided to add playable races in a future expansion, I'd prefer purely cosmetic races. Anything else will be a nightmare to maintain in terms of game balance.
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