With an automated parking garage, space can be optimized thanks to precise and predictable movements. Slots can be made with small tolerances in terms of width and height. More vehicles can fit in a multi-story car park which means more revenue for the owners. They can recoup the cost of operation faster.
It also saves time since owners do not have to wait in a long line to and go around multiple times just to find an empty slot. They can just leave their cars by the entrance and let the system sort everything from there. The algorithm will quickly identify the best empty slot for the vehicle and guide it there.
Owners can move on right away to what they actually intended to do: go to a concert, watch a game, buy groceries, work in the office, pick up a friend at the airport, and so on.