A useful scenario
Imagine a group arriving in Duong Dong with different appetites. One person is drawn to Phở tái, another prefers Phở nạm, and the table is considering Phở bò viên as a shared anchor. Phở Sài Gòn works when those choices can form one coherent meal. It is less convincing when the group mainly wants a faster bowl, a drink-led evening or a specialist cuisine that the menu does not clearly support.