Parents who decided not to get a yaya, why did you decide to do it and how did/do you manage the set-up?

I have a friend who decided not to get a yaya anymore thinking it would be an added cost. She went back to work few months after she gave birth to her now 2-year old daughter. She has the advantage however compared to other moms because her mother is always at home to take over her duties. Her husband might not be around due to being an overseas worker, it still became manageable for her. Added benefit is that she is confident that her daughter is in good hands.