Will Hardison of Fanbase, LLC: First is lighting. You can have the nicest camera in the world, but if you don't have the lighting for the scene you want to shoot or for the interview you are taping, it's going to look terrible. Poor lighting becomes incredibly difficult when editing to produce a high quality final product.
Second is sound. People buy a camera and think, “Cool. It's got a built in microphone.” And they just use that. Versus getting really nice lapel, wireless mics that are feeding into an audio recorder that sound really crisp and clean. The last thing you want for a video is to sound like you shot it in your bathroom, with that hollow, echoing sound. Because that just screams low budget, low quality.