I don't see what the problem is at it costing 100k gil. As someone else pointed out, it's a much needed gil sink but more importantly, to those of you who enjoy gathering and selling/using items then just gather and sell Darksteel Ore, Gold Ore or just any of the hundreds of items that sell pretty fast.

If it turns out to be a rare gatherable item, that's fine also. But I can't see complaining over 100k gil for an item that can get you some nice gear.