Kobe's night view is one of the best three night views in Japan. (Other two is in Hakodate and Nagasaki.)
From Rokko Mountain, you can see both Osaka and Kobe.
Rokko Garden Terrace is the good place to enjoy the view. (Altitude 890m)
The reason for $10 million night view... because electricity expenses for the area in this night view are $10 million per night!