Powder-bed fusion is driving the hype for additive manufacturing right now, but it may not be the best answer. Directed energy deposition is a strong contender.
The model definition for additive manufacturing imposes inherent challenges that impact the dimensions, tolerances and appearance that you can (or cannot) achieve on an “as built” part.
In conventional manufacturing methods, tooling can easily cost hundreds of thousands of dollars. With AM, you print as needed, no jigs, fixtures or tooling required.