I can't remember the last time Wutai's markets crashed. I know they have on Mysidia, but since my secondary character homes there, and I only play it once every one or 2 weeks, I can't tell you how often. Most of the time I log on and my retainer is back at it's home, and knowing I had it in a wards, I come to the conclusion that the market crashed. It's happened a couple of times like that anyway.