Obviously, not all digital multimeters (DMMs) are the same. The wide range of prices tells us that. Then, there are feature differences. For example, as you move up the scale you get high/low/average recording (among other features). An important way DMMs differ is by their energy category.
Suppose you own a computer build and repair shop. Your techs use DMMs to verify power at the 12V and 5V connectors. How much incidental energy is available at the test leads on the typical system