A while ago I picked up a 3D printed railway house from Trademe. These are available in a variety of scales. Mine was printed in white strong and flexible, which I think is a nylon based plastic, and cost $35. The Shapeways shop shows a variety of other buildings available.
So, what do we get for our money?
A nice touch are the internal walls (even with a fireplace in the front room) attached to the foundation. the windows are separate pieces and could be replaced by Trackside widows. The front porch is also a nice touch and would be hard to replicate otherwise.
Goes together square.
Theres also the back door.
So, opinion time. With the standard proviso that the standard 3D printing clean up is required, I like it. Its a sizable time saver especially if you require several identical buildings which was typical of the railway settlements seem at every sizable station. The negative is that the standard corrugated iron roof is not modeled, though I think it would have come out very poorly in the WSF plastic. I was going to try to give it a number out of 5, but failed. To my mind a better question is "would I buy another one at the same price". The answer is yes.