I laugh at you people like Judeau who were profitting off Fish Bones by jacking them up to 50-100k. That was just plain mean. The ONLY reason they jumped up in price like that was because of the quest 'A Proper Burial', and the only reward for that quest is a Withered Rolanberry (or just a normal one if you don't do it right). The only use for that item is to sell it to an NPC for a max of 4,624 gil. In other words, the only REAL reason to do it was just for the sake of the little story and to have another quest completed. 5k or less is what it SHOULD sell for on the AH, greedy pricejackers. >.>
