I keep seeing artifact armors for the main Jobs, but none for the classes (for those who want to remain the base class for class-specific skills).
If not, why not? They could all be unique to their upgraded class. For example:
Marauder - Pirate Attire (Since all the pirates in Limsa seem to be Heavy Axe users)
Gladiator - Some Gladiator attire. Similar to what the leader of Ul'Dah wears.
Archer - Well, some Archer-specific attire. Look very foresty and green with some brown.
Lancer -
Final Fantasy Tactics style.
Just some ideas. It would give more incentive to remain as a class rather than becoming a job.