$250 is actually a pretty good price, but the price has been dropping on them recently a bit I have noticed, and becoming slightly more available, still the most expensive Acanthurus Tang out there though. The place I order from has 2 in stock currently the smaller is $289. My understanding on them is "moderate" hardiness Pete. Better reputation than Achilles, but not as hardy as the average Yellow or Sailfin.....I buy all my fish online, but this is one I would rather see in person before buying, just to make sure he is eating, alert, and acting "normal". Beautiful fish.