To me a scale aluminum plane is more scale than wood because a real plane is build out of metal. Aluminum vs. wood is like wood vs. epo. Of course I'm relatively new to this hobby, people who know better may think otherwise. I think as long as the size is not too small, the wing loading is not an issue. the fabrication technique is not an issue, the cost of material is not an issue, so why no manufacturer making them? If everything is being equal, would people buy them as much as the wooden models? It would be nice if those in this industry can share their professional point of view.