Though there are many more "newly prosperous" who can afford fine dining, there are still plenty who cannot afford white linen and silverware when eating out.
Even in such cosmopolitan places such as Shanghai, every few blocks you are able to find those "food alleys" as I like to call them.
This particular one was in the middle of a factory area on the very east end of Pudong. About 20 food stalls with a variety that makes our Mall food courts look anemic. Even if I don't recognize half the offerings, it is just great to try a few things from a variety of vendors.
Fresh, inexpensive and very tasty. Not for everybody, Tony only tried a bun, but if you are headed to China, step out of your comfort zone and dig in.