Personalhistorians.com addressed some Frequently Asked Questions about Personal History:

What’s the purpose? Why would anyone be interested in my life story?
Every person’s life is interesting. Wouldn’t you like to know what your great-grandparents’ lives were really like—in their own words? No matter how ordinary you might think your life is, it’s extraordinary to your descendants and to future researchers. As Mark Twain said, “There was never yet an uninteresting life. Such a thing is impossibility. Inside the dullest exterior, there is a drama, a comedy, and a tragedy.”

What are some advantages of creating a video?
Video captures the subject in action, telling his/her life story in his/her own voice, showing facial expressions and gestures. Future generations can see the people and objects that are most important to the subject, as well as his/her favorite places and activities. Video production can be simple or complex, depending on the client’s desires. It may include music, sound effects, titles, opticals, or interviews with other family members.