This topic has finally been the catalyst to stop lurking.
Tiered pricing is just part of the Chinese culture. We have a mixed family. If our very obvious Chinese grandmother is not with us, we get the higher prices. If we haven't visited a restaurant in a while, we get the higher prices. Even asking the winsome child to order in her Sichuan accent may not help. We got a bad meal at Double Li because Mr Li, while charming, simply did not believe that we like authentic.
While visiting a "small" town near Chendu, China this summer; we witnessed a spirited exchange between our host and a local shopkeeper. I asked our daughter to eavesdrop and translate: "He told the owner that he had given us friend pricing, but he needed to give us family pricing." Our host is the brother of the wife of the brother of the grandmother. In the US, that would be no relation at all.
All across China, admissions and tickets have tiered prices -- local residents, other Chinese, and other. If you visit the great wall, or Xian terracotta warriors, or one of the tombs -- here is a big tip. Hire a college student and take a local bus -- it will be about a tenth of what the hotels are charging, and it will be a lot more fun.
We did take one tour arranged by a friend, and the tour guide told us NOT to tell the others what we paid.
Airlines and hotels do the same.
If you don't like the tiered prices, stay out of Chinatown. I don't know a single good restaurant that does not have secret menus and different pricing. By all means, don't get acupuncture -- they charge different prices as well. Grandmother gets the family rate, we get the friends rate, but we see other non-Chinese charged even more. We've seen the same "practice" at the dentist and doctor. That's the advantage of not using Roman numbers on the not-so-secret prices; they are usually posted on the wall.
As far as why they don't serve authentic to us long-noses? (That's the translation for foreigner that we sometimes hear directed at us.) It's because they are convinced that we won't like it, and they will go out of business. In Iowa, we visited a local Chinese restaurant where the most that my husband understood after another lively conversation between the local owner and our grandmother was "McDonald's." Basically, the owner/chef was saying that we would not like the food as it was not really Chinese, but it was better than McDonald's. She maintained that Iowans would only eat food with gravy, so she had modified all the recipes to include some. Remember all the early famous Chinese dishes were really developed in the US -- chop suey, crab rangoon, ..... They have some history on their side that Americans won't want the real thing.
But on the other hand, we are always up for meeting new people and introducing them to chicken feet, pork bellies/intestines, and fish served heads and tails.