Source: Perry Knotts / Getty Whether you're attending or organizing your first massive event, be it sports, a concert, or a festival, it pays to know that comfortable amenities and immersive technology can help make a stadium experience unforgettable. Just as vital is pre- and post-event entertainment. The above elements help create an intense, palpable atmosphere and unique, memorable stadium moments. They're all vital to fan engagement, which is what pushes fans to spend over $50 billion yearly on their favorite leagues and teams, according to Deloitte.