Amazon Prime and/or Target circle360?

We have prime, considering target circle 360 (free shipping for \~$100 per year) because I want their registry bag and I feel like we are going to do many more target runs once bb is here. I don’t want to pay the annual fee of $100 for I think $40(?) worth of stuff unless we’re going to actually use it with a new baby. Do you spend the $100 per year for circle or prime or both? Is it worth it?