Comment Re:The real questiion (Score 1) 72
I think you're mistaking "what you want" for "what everyone wants". So while I agree that these press release tend to hand-wave over the difference between "printing in wood" and "printing in PLA with wood powder mixed in", I disagree with the idea that these composite materials aren't valid or interesting.
These sort of composite printing materials aren't very interesting from a structural perspective, because the mixed in particles aren't structural.
But they can have other interesting properties. For example, stainless steel and iron mixed into filament makes the filament look like metal, and magnets will stick to it. Mixing conductive materials in can yield (mildly) conductive 3d prints. Mixing wood in gives a material that feels and looks like wood. Bronze particles make the print look like bronze, and be extremely heavy. Heck, glow-in-the-dark is similarly a powder mixed into a base material. So is fire resistance. There are a near-infinite number of materials that are mixed into plastic to affect color, hardness, fire resistance, feel,
And while you might only care about the structural properties, it's entirely legitimate that others might care about appearance, feel, weight, magnetism, glowing, etc.