You also want to use your data and insights to adjust your future video strategy. View-through rate should inform the length of your video, audience demographics should inform content, characters, and voice-over in your video, and most successful distribution channels should inform where to prioritize distribution efforts. Use this data to create a more detailed strategy next time around so you can set up any future marketing videos you create for success.
Professional cameras, like DSLRs, give you fine control over the manual settings of shooting video and allow you to achieve the shallow depth of field (background out of focus) that people rave about. While they're primarily used for photography, DSLRs are incredibly small, work great in low light situations, and pair with a wide range of lenses — making them perfect for video. However, DSLRs do require some training (and additional purchases) of lenses.