For the next month, the world will tune in to watch the 2010 FIFA World Cup, arguably the biggest sporting event on the planet. Fans and tourists from near and far will travel to South Africa to experience the games, soak up the sights, and root for their favorite teams. And, yes, Americans are leading the pack.

The American love affair with soccer has been slowly growing over the years to new heights of fan following and loyalty. Case in point, ...