World of Warcraft facts

"Goblins place their faith in themselves and in gold. They raise eyebrows at insubstantial concepts such as shamanism and the Holy Light, preferring gods they can see, weigh and spend."
"The goblins do not, as a rule, like the Scourge, as the undead threatened to wipe out the entire populations of the Alliance and Horde, leaving the goblins with no customers. War is profitable for the goblins; annihilation is not."
"They made a great deal of money selling items to help the Alliance fight Illidan and his army of blood elves and naga, and constantly remind the Alliance members who travel through Ratchet that Illidan is still out there and supplies are always needed. Some merchants are able to mask the tone of glee in their voices while saying this, but most don’t bother."

-http://www.wowwiki.com/Goblin

"Similar to their savage weakness, the Horde severely lacks in technological prowess since the goblins left their alliance. Members of the Horde rarely take up the tinker’s calling; the faction largely views the use of technology with disdain, stooping only to use goblin technology when they can afford to pay goblins to handle it. Orcs prefer the rewarding feeling of axe and spear through flesh."
"If you put an orc, a tauren, a human and a dwarf in a room with no weapons, most everyone can make a good guess as to who would come out alive. The front lines of the Alliance’s armies are always in danger against the physically stronger Horde."

-http://www.wowwiki.com/Horde