What's the point of a camera?

https://forum.lightburnsoftware.com/t/if-your-wondering-why-to-buy-a-camera/11510?u=mrrick386

Here is another really good example too. The ability to be able to accurately use up your scrap material is one way i utilize it at work

edit: this is not my picture or set-up, but its one that really sold me on the camer system from lightburn