A wakeboard’s lifespan varies based on its construction, how you ride, and how often you use it. It is unlikely that your board will break or become less buoyant. Instead, it is more likely that your board will get softer and loses its spring-like pop over time.
To get the most air you can, you will want a board that springs back to its original shape, offering you as much pop just as the first time you road it. Because of the loss of pop, most riders replace their boards every two seasons.