Some objects disintegrate. Redman says that recording artifacts digitally is important for several reasons. First, the data can be shared over the Internet. Researchers from all over the world can study objects without traveling to them. And there is no need to transport objects, risking further deterioration.
Categorization also can become more precise.
Shapes can be classified using a mathematical formula rather than a scientist's subjective observation. Such precision may be important as archaeologists develop new techniques for analysis that current researchers cannot even imagine. The 3D scan will provide complete information about the objects, including information that may not be considered important today. We want to study with greater precision. We want to ask questions that haven't been asked before about the appearance of an object.