One application I can see is teaching people how to model objects in 3d. You could use this as the 3-dimensional analog to tracing and have tutorials where you first get good at tracing the model and then try to recreate it from scratch.
For example, I have only tried my hand at 3d modelling once or twice (and sucked at it enough to give up), but just watching this I feel like I could model vases and lamp posts with a bit of practice.
For example, I have only tried my hand at 3d modelling once or twice (and sucked at it enough to give up), but just watching this I feel like I could model vases and lamp posts with a bit of practice.