Why is the prospect of the stereo garage industry so favored, do so difficult

Vertical garage, but also equipment to come, occupying space, but also need to maintain, but also power consumption. So the cost of running up is too high, is bound to increase the cost of parking, which is a lot of people can not accept. Besides, if there is this cost, it would be better to build one or two more floors of parking. So in the future, people who engage in the parking lot business is generally to build multi-storey parking lot, such as underground parking, surface parking lot a few more floors. Too many layers, you can consider the elevator lift vehicles, with the elevator, then the cost is almost the same as the vertical parking lot, China's highways can not afford so many vehicles, plus the cost of fuel is not cheap ah, so this should not be used in the next two or three decades.