There are important exceptions, though. It's well demonstrated that wine price influence taste perception, for example [1], [2], [3]. And many of us have seen tech consultants charge prices all out of line with value delivered.

[1] https://www.caltech.edu/about/news/wine-study-shows-price-in... [2] https://www.sciencedaily.com/releases/2017/08/170814092949.h... [3] http://www.openculture.com/2017/11/expensive-wine-is-for-dup...