Seriously, it all depends on what you're trying to do. If we're talking about regular breeding, females are obviously going to carry the bigger price tag. Now heres the catchy part. If we were to breed something like the white rays such as frank's white leos, or Mike's white pearls, the males would be worth alot more. The male would have the dominant genes needed for the white morph. Again, this would only be the case for rays that are so rare, that we pretty much know how many there are and who has them.