My LFS sells these for $40 per head, but gives discount for bulk purchases, so that piece would likely be around $300 here locally. Those gold ones are more rare and thus can command a higher price than green.
Im in SoCal and have about 50 of them within a 40 mile radius, but unfortunately many of them aren't fit to buy from. I bet for you the closest LFS is "A World of Fish" in Minneapolis.