People are dazzled by celebrity. They may not like the celebrity. Chances are they know little, if anything, about the celebrity. But they are drawn to that celebrity like moths to a flame. It's like the proverbial shiny object.
I spent most of Friday traveling, so I couldn't watch even if I wanted to. But I didn't watch either of Obama's inaugurations, and I can't tell you when I last watched any inauguration. I'm just not into spectacle.