Moonfire Faire

[Avatre]

If the really wanted to be lazy about making costumes for the event, they'd have better luck making past costumes obtainable again. But of course SE's priority is the mogstation, not the game itself.

They sort of did...this is below the Event Items on the page dedicated to the faire:

* Certain items available during previous iterations of the event can be purchased via Moonfire Faire vendors.

Based on where it is located under the current event items, it quite possibly could just be for the non-gear items being available.