Professional sports teams seam to be in a bubble market. Revenues are not consistent with value, and they are running out of egotistic billionaires. It will be fun to seem them burst.
Pro sports teams have been vanity purchases, at least since the 1960s when family-owned teams began to quit being profitable enough. MLB has seen revenue growth for more than a decade, most of it during a very mediocre economy. Owning a franchise during a decade of likely growth isn’t going to hurt any owner.