How are baseball players less replaceable? Every year players retire, and every year new ones come in to take their place. By saying they are not replaceable, there would be zero talent on the fields right now as it all should have dissipated decades ago. Are you kidding here? How many active major-leaguers are there? How many people in this country are there? Maybe one in a million people will actually become a big league ballplayer. I don't know how many people could do your job, but I'll bet it's a lot more than that. The difference is due to scarcity. Exactly. Yes. I'm actually thinking of writing an article on this for my school's national business review. Baseball players might actually be underpaid from an economic standpoint. Considering the amount of revenue they bring in for their "company" (MLB), they take home a smaller share than professionals in other fields, such as sales or banking. They're not of more value than most members of society: doctors, lawyers, teachers, politicians, millitary, etc. However, in terms of the money they bring in and the share they get of that, I don't think it's as skewed as you think.