Travel plays a vital role in the World of Warcraft. The game's massive size means you have to know how to get around. Fortunately, the goblins are there to provide these travel services. Goblins are neutral with regard to the war between the Horde and the Alliance, so they rake in the profits from both sides by providing services and arms. They also have an inflated opinion of themselves as you can see by this tribute statue outside of Booty Bay, one of their major travel hubs.
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Mark W. Kaelin