McDonald’s has seen slipping sales numbers for a couple of years now. In response, management is playing with the menu and making other changes around the margins. But is that enough? Sure In-N-Out Burger and Sonic are growing and taking market share on the west coast, but could our taste for mass-produced burgers be steadily declining, taking Mickey D’s profits with it? Could the sun be setting on the golden arches – and on BK and other mass producers of burgers as well?