I have a Photographer and Cinematographer...Which is a High Tech Videographer, My wedding footage will be turned into a music video, that is the difference. I think its good to have video, because it captures more than pictures.
We're not hiring a professional videographer. They are way too pricey and out of our budget. So instead my dad will have his camcorder and record certain things and a guy from my work is going to video tape my wedding! :) He has a decent video camera and a tripod. As long as I have some sort of footage I will be happy. To me it doesn't have to be professional and it doesn't have to be the ENTIRE ceremony and reception. In reality I won't have time to sit and watch 5 hours of my wedding.