What March Madness taught me about finance

As I told my class I always feel guilty this time of year. I just filled out the annual NCAA March Madness bracket. I did not fill it our according to top picks, nor even most popular picks, nor by going by the betting line. Why? Because picking upsets is fun. So what does this have to do with finance? It might explain why investors pick "glamor" stocks or stocks that are seen as exciting.