Nandroids get improvements like being able to take extra energy from eating food, which gives them an artificial digestive system that customers found erotic uses for, and consumer demands for the ability to fuck their nandroids leads to the development of sex-capable systems that allow them to have sex with humans and feel pleasure from doing it, market forces created nandroids with these extra features as well as services to upgrade them by installing these new functions, which include the ability to fall into a state of romantic love with their owners or anyone their owner wants them to love. They kept the artificial look of the nandroid, which customers already found appealing, and added features in upgrades to enhance the sexual and romantic experiences. Worth noting that the demand for totally sfw nandroids had never left, and those unfuckable models remained in circulation long after the company took its predictsble new direction.