Complex sentence: Depending on the time of day, a park visit could include breakfast; lunch, including a "Hoss Burger", if one was desired, could also be purchased; estimates are that over 3,000,000 of these were sold during the park's existence.
Split into simpler sentences: Depending on the time of day, a park visit could include breakfast. Estimates are that over three million of these were sold during the park's existence.