FREE(Friday Eve) Color with Black and White

When to use black and white for an image? Being in the media business, videography, photography, design, etc… The question arises at some point and time? Is color too much for an image?
Does it capture the essence of the moment? For example - a wedding picture, the bride is in a white and the groom is in black. Black and white tone gives it that natural-classical look, a vintage look. The black and white tone gives it the seal of approval.