In College
Pro: Relatively few other history majors, so you're interesting by default
Con: Several reasons for why there are relatively few history majors
Pro: Homework is almost entirely reading and papers; There will always be a source backing up your viewpoint
Con: Homework, while largely optional, makes you want to shoot yourself; That source will either be in a 100-year-old translation or ancient Greek
Pro: You get to feel superior to economic/business majors because they only understand value, not worth
Con: They get to feel superior to history majors when they get a job because history degrees are worthless
Pro: No matter how awesome your friends are, Roman history textbooks will always have better party stories than them
Con: No matter how depraved/dickish your friends are, Roman history textbooks will always have far worse stories than them