Nscaler man, I am actually working on a blog post with some N scale stuff, but in short...
One could certainly print N scale structures using shapeways.com, great detail, but the cost would be somewhat high. In HO it is outrageous form shapeways, but the detail is much better.
As an example, in N I could not print bricks like the lumberyard office above. Concrete blocks work fine in N scale...they are about the size of HO bricks after all. I have done lap siding in N scale, and it is okay, but, well, out of scale to look right. When I get some printed, I will post some picts. The smokehouse, for instance, would be easy to convert to N scale. You need one?