Quote Originally Posted by MilesSaintboroguh View Post
The tower seems to be more of a place for royalty to gather, which also doubled as an energy source. The real question should be why none of the Allagan gear from the coils appear in the tower.
Because everyone would be farming ST to get their HA gears?

My personal take on the lore is that Crystal Tower is the tomb for an emperor while the Coils are more like a spaceship / military-research facility kind of thing. So it's more about aesthetics vs practicality.