I've definitely never sold a single piece of gear for that much. Though i do have that item on my snatch list if I ever find it cheap since it's highly desirable. I used to dabble in transmog by collecting sets and selling them anywhere from 5-15k a piece. You can make a lot more selling transmog sets than just selling them individually. But lately I've gotten out of the business because I just don't have the inventory space to deal with it anymore and it's often very time consuming collecting all the pieces beforehand. 25k is definitely not a bad return for something just sitting in your bank. According to TUJ, the hat has been listed anywhere from 10-75k on Bleeding Hollow. I personally have yet to see it since I recently started playing again.