I think it is a question of finding the right balance, for you as an individual, between being able to express yourself as fully as possible and convincingly as possible as a female, without interfering unnecessarily with sexual function - which is after all a part of life!
It depends I suppose how important sex is to you - to me it's important so I won't want to risk interfering with sexual response any more than necessary, by having castration - I don't plan to have full surgery.
