Shangri-La is a great luxurious hotel. There are something in common in its hotel in Beijing and Shanghai: they both has two towers.
Check this photo (not taken by me).
The new tower is at the background, and it is taller than the old tower.
Look at this Beijing tower. It is side by side.
The Strategy of Shangri-La
Shangri-la wants to be one of the first 5 star hotels in many places, and they reserved enough land for expansion. When the time is ready, they build the second tower. The two towers are at different price – the newer one is more expensive, much more expensive.