Well I meant how they made it in World of warcraft, but in WoW all towns are very bare. For examply stormwind should be times and times bigger and more populated than how it's made in game. 
 AS for gadgetzen, yeah... it's supposed to be one of the biggest towns in the world... basically like Las Vegas in fantasy land. You can do everything there as long as you have the gold. Slavery is legal, gladiator games to the death, other generally unlawful thigns too and so on.