If you take a look at the market price for phantom males and females, the males are more expensive. This tells me that it is all about controling the market and making people pay more to play the game as mentioned. If you want to get a head start on a high-end male, you will be taxed. A female phantom will be great if you buy a hatchling now in two to three years. A male phantom will deliver within 20 to 30 meals. He will be breed to 5 to 10 females and produce many phantoms hopefully.