This is one of the last items that a lot of MNK get, and to a lot of them, it is worth a lot, and they are willing to pay whatever it takes. As long as people are willing to pay it, it is worth that much. It sucks when you don't have that much to stump up for it, but the alternative is KS99, or HNMLS, like a lot of high end armors.
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When I'm good they never remember,
When I'm bad they never forget