If the basis for its worth is simply going to be rarity then I would suggest holding off any hypotheses you might chose to come up with. The reason you should wait? There's no evidence to show that this item will not continue to spawn in a dungeon somewhere, or in doom, etc. Jeremy has made the comment that the DEV team wishes to have artys continue to spawn in the anti virtue dungeons, and to add new ones as time goes on. In addition, how many times have we seen cursed artifacts now? Like a dozen?(I exaggerate, barely).