As a WoW player, you get to travel to a lot of interesting places, and bear witness to a lot of different fantasies: As you Quest, Dungeon, and Raid your way through Warcraft, you will see everything this universe has to offer
For Example,
A new player could find themselves exploring the Cataclysm zones, or Draenor. They could find major characters like Thrall and Drek’thar, and they could find themselves looking at the Throne of the Elements. They could Play Warcraft 3, and get introduced to the Farseer hero unit.
And maybe this player would think: "The Elements are Awesome, and these characters are cool, I wanna play as a Shaman!"
Another Example:
Someone could find they Really enjoy Wrath of the Lich King zones, They See the might of the Scourge firsthand, and Watch Death Knight Characters lay waste to everything in their paths. Maybe they’re inspired by Arthas or Thassarian. Or maybe they played Warcraft 3, and Really loved the Undead.
And maybe this player would think: "The Scourge is unstoppable! These characters are so cool, I wanna Play as a Death Knight!"
So, Imagine if you will.
Another Player: They are fascinated by zones like the Storm Peaks, they Explore every inch of Gnomeregan with their friends, they do quests in Azshara, They explore the Mechagon, They laugh their butts off during the Goblin Starting zone. They even see awesome mounts like the Sky Golem or Mechano-hog. They see characters like Mimron, Gazlowe, Or Mekkatorque. Or Maybe they play Warcraft 3, and get real laughs out of the Goblin Characters, or the power of the Tinker Hero unit?
That player: They can dress up like a Tinker, equip cool goggles and the like, They can get weapons covered in gears and gyros, they can get mounts like the Mechano Hog or the Sky golem. But they innevitably have to Pick a class based on something Else
It must really stink, considering how we see Tinker NPCs all the time, even as enemy “players” on island expeditions.