Primals sometimes drop an untradeable key item, such as Ifrit Horns, Moogle Voodoo Doll, etc.

This Key item can be exchanged at an NPC for weapon of choice.

Requires that you be in the party to complete the encounter.
Removes the crafter, HQ, materia possibility out of the equation.
Removes the current loot system fury that some people experience out of the equation.
Carries Yoshi-P's desire that you could get a weapon from a class you weren't playing with and with the drop rate, still encourages the encounter multiple times over.

Separate post will be made below to justify the madness.