This is not a trick question, by the way. I passed a small waterfall and captured it in three ways. Clearly the context of what you do with an image, audio or video clip is important eg the significance of an image added to a Foursquare login or shared on Instagram.
However, each element has a different quality and I think it is worth remembering that when we look to capture and share content. In more formal communication (within businesses, for example) we tend to default to the written word when we can add a layer of emotion by simply using audio.
It is quicker to capture and share images, audio and video than it is text articles so surely they are worth exploring more – even in our more formal communications.