The goaltender is often seen as not only the most important position in hockey but maybe in all of professional sports. If a team doesn't have a solid or better goaltender, it is probably losing a lot of games and in the process of trying to find an upgrade at the position.
Another position in the discussion is the NFL quarterback. There is no question having an elite goalie or an elite quarterback gives a franchise an advantage and a piece around which to build.
Where the two positions diverge is in overall depth. There are 32 NFL teams, and not only is the group of elite quarterbacks relatively small, there aren't enough who can provide consistent, competent play for every team to have one, let alone two or three.