you can make things out of a variety of materials
True, especially materials with greater strength than plastics. BUT you need a solid block of material, which can be wasteful, more time consuming, use up lots of drill bits, and not allow cavities like 3d printing does. Also, for real-world applications, you will need different drill bits, and plan ahead a lot on how you can apply them, and are restricted in what you can do with them.
it is more accurate.
This is disputable. A 3d printer engineered with the same care as a milling machine IMHO can be just as accurate. Hobbyist and low-cost machines of either sort usually can’t.
I think both technologies are complementary.
