Copies of 3D objects vs instances of prefabs.

What is the difference between importing a 3D object (.obj or .jas from Cheetah 3D) and making multiple copies in the scene and creating a prefab out of that 3D object and then dragging multiple copies in the scene?

The “.obj” you are dragging in, is pretty much a prefab already that has meshes underneath it.
My typical workflow is to drag a model into my scene do stuff to it, then drag it from the hierarchy into a folder for prefabs.

Then to add the multiple copies to the scene I drag in the prefab. This way I can update all of them at the same time when something has to change.

+debeani Thanks.