I'd totally do it (I'm transgender), but..
a) I'm on cyproterone acetate, so my T levels close to a castration.
b) Although getting an orchiectomy would give my liver a good rest, I'd have to deal with scrotal skin athropia, ****ing my donor tissue for Gender reassignment surgery and requiring a graft from my thigh. Also I'd need a goddamned penis pump to keep the erectile issue.
Still, I don't see the point in a cis person getting a voluntary orchiectomy unless they plan to transition from one gender to another. If one of the two main sex hormones in the body does not have a strong level, the body will enter into menopause or andropause. Right now if I stopped injecting oestrogen but kept taking cypro, I'd start suffering from hot flashes, saggy skin and lose of bone density (something I get checked every six months). men who undergo an orchi because of a real reason such as cancer will take testosterone to avoid andropause.
PS: Most surgeons would require a letter from the shrink before performing an orchiectomy, and that piece of paper is not easily obtained. Messing with your balls can have serious psychological effects and there's no going back. My therapist, endo and surgeon are all hell bent on me getting reassignment surgery ASAP after 1.5 years of treatment... Saving for thailand, I don't want a national produced butcher job for the rest of my life.