Been farming these the past few weeks, and forgot to save one for my Gobbie bag 6... Needless to say, haven't farmed any recently, and decided to see about buying the items for the quest, expecting the ballon cloth to be the only thing left that was expensive (had drops on every other item, and made less then 100k on all of them)... Needless to say, I must have hit a bad day... The last 2 ingots we sold went for 20k... The one I bought for the Gobbie Bag quest sold for 100k... I know, I should have farmed it, however, due to mission 1 AF item, having crafted shuriken, and having full stacks as well as toolbags for all my ninja tools, I REALLY needed the space...
Anyways, on Carbungle, these things are going for 20k-100k depending on the day that you buy them...