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I continually hear people raise this complaint about WS. Though, the only point these people are able to raise is that other games, such as WoW, have multiple weapons available per class. As if that in itself is some kind of argument. Hint, its not. But, we will pretend it is, and this is my rebuttal.
It works in WoW, because multiple classes can use the same weapons. That isn't the case in WS though! For instance, a 1h axe in WoW can be used by an enhancement shaman, a rogue, or a fury warrior. In WS though, it could be used by the stalker, but who else? No one! All the classes use unique types of weapons, so creating more is pointless! Furthermore, could you imagine how cluttered the loot tables of bosses would be if the devs had to include multiple weapons for each class?
It could simply never work!
What if you like tons of animations?
In fact, the Devs already commented on this, the more weapon types the less animations per weapon. So, having 1 weapon allows them to have more unique animations in total.