I think the National Hockey League's salary cap is a great feature which helps to promote parity throughout the league. With a hard cap, teams are forced to be on a somewhat even playing field and be smarter with their decisions on how they allocate money. It allows smaller market teams to fight on the same level as some of the bigger franchises, and rewards shrewd decision making over having a rich owner. Of course, as a Canucks fan sometimes I wish there was no salary cap, as we can't seem to ever learn how to use it properly. Overall, I find the NHL's hard cap as something quite unique within pro sports, as even other major leagues with salary caps, such as the NBA, have mechanisms like the luxury tax which allow big teams to spend extra to gain a competitive advantage. And the MLS has an absolute mess of a salary cap which no one can understand.