On average Fat-Tails lay fewer eggs per season than leopard geckos so the price should stay higher longer. Another factor is that the fat-tail morphs are still newer than most leopard gecko morphs. There are also lots of combos of fat-tails that have yet to be done yet so the value of the base morphs will remain higher since they are valuable in creating new morphs. Just my perspective on the market, not trying to speak negatively on leopard geckos. They are great geckos!