I'm talking about full control over the speed and the way it travels along the orbital radius. Sure it wont take much to do engine wise but it is restricted to circular movement so if its on the far side of the planet then it will have to move pretty quick to get into the correct position. Aurora only have perfect circular orbit moments which a station would be limited to using. So it can't move from A to B. It has to go around. Further away the larger the radius the longer the travel time.
