What made the Waffle House grow so much?

The Waffle House grew rapidly due to its focus on providing consistent, affordable, 24/7 breakfast fare and friendly service in a diner-style setting. Additionally, its strategy of opening near high-traffic locations, such as highways and universities, helped to attract a large and loyal customer base. Over time, it also developed a distinctive Southern culture and reputation, which has helped to build its brand and expand its reach.