The saying used to be “Choose Any Two” and the third one would be a consequence of your two choices.  Selecting high quality and high service would yield a high price.  If you wanted a low price formerly you would have to sacrifice either service or quality.  This is generally not true in today’s marketplace.  It is assumed that quality and service will be good and price will be low or competitive.  The global economy that we are in today has worked out well for consumers.  Today you can generally “Choose All Three”.