I might call it reverse prejudice.
Let's say, for argument's sake, someone is running restaurants with identical food at 2 different locations. Same menu, staff with similar skills, same price.
1)Let's say one is in an "authentic" neighborhood.
2)One is in a mall.
1)One is in a subdued, pleasant neighborhood not many people know about.
2)Another one is in a glitzy, ostentatious location, a well-known street.
There are more examples of plausible comparison pairings, but you get the idea. This is an exercise in recognizing real substance vs. hype (or anti-hype).
Would you be biased even before trying the food? Even as you try the food, are you not influenced by the bias you've entered the restaurant with, the company you are with, even word of mouth (hype of the superior kind)? Do you think people might not be completely objective?