Product development engineer here. In the early stages of a project it can be useful to have CAD models of a competitor's product when analyzing how to improve upon them. Recently we had an intern reverse engineer a competitor's product, and we've used some of these CAD models as the basis for our new designs.
Would it be useful to capture the full appearance properties of the model (BRDF) etc to be able to accurately render the object?
This combined with 3D printers would make fixing stuff much easier by printing the broken piece.
There are multiple but mine specifically is AR. It's valuable also for VR, 3D space planning for Designers/Architects/Engineers, Assets for Game Dev, Objects for modeling and simulation, Training Deep Vision nets and on and on...
Anyone who does work with 3d content: visual effects, video games, vr, ar, etc. Being able to quickly build your scenes from a huge library or accurate models would be amazing and would save businesses lots of money.