Stages? Points?

What’s the difference, can anyone help with a use-case for stages? I 'm using points, why would I also use stages, doesn’t that give me conflicting information about a contact, and create more overhead for having to adjust then evaluate both? Trying to make sense…

What’s the difference, can anyone help with a use-case for stages? I 'm using points, why would I also use stages, doesn’t that give me conflicting information about a contact, and create more overhead for having to adjust then evaluate both? Trying to make sense…