@ProjectGames, the male staying depends on a lot 15 or so years from now in the orang population. His genetics are extremely strong so he likely will be pretty valuable then. By then Sekali will no longer be breeding. Who knows if Budi and Kembali will be alive (males being more prone to earlier deaths) and how many babies they will have had. Plus any other births and deaths from Puppe, Molek, Dinding and Abigail's lines impact his value.
Then there is what the zoos group looks like by then. What did Ramai have? Did Sekali have a third and if so what gender is it? How are Ramai and Sekali doing health wise? Is Budi still here? We know Jingga and Kembali should be gone by then but still so many questions. If Ramai and Sekali produce girls then baby boy is leaving. We would likely keep his sisters as the future breeding females. We could end up with no more babies too. Lets say Ramai just doesnt have a baby and they waste yet another breeding cycle for Sekali, he could be all we have. In that case once Sekali is too old there is zero point in keeping Budi. Let him go breed and wait on baby boy to mature and get a new female for him eventually. 15 years down the road leaves way too many questions to even be able to really guess.
Then there is what the zoos group looks like by then. What did Ramai have? Did Sekali have a third and if so what gender is it? How are Ramai and Sekali doing health wise? Is Budi still here? We know Jingga and Kembali should be gone by then but still so many questions. If Ramai and Sekali produce girls then baby boy is leaving. We would likely keep his sisters as the future breeding females. We could end up with no more babies too. Lets say Ramai just doesnt have a baby and they waste yet another breeding cycle for Sekali, he could be all we have. In that case once Sekali is too old there is zero point in keeping Budi. Let him go breed and wait on baby boy to mature and get a new female for him eventually. 15 years down the road leaves way too many questions to even be able to really guess.