Small house = smaller cost.
Ten grand or less. isn’t half bad for a ‘starter’ home. Looking at Tiny Houses/w or without wheels and the cost would be much greater. The company could probably work with you in printing a home to meet your needs, along with those of the family. At a greater expense, of course.
I think it has something to do with where you put it.
We moved from Seattle to rural KY about seven years ago. My wife was looking at plans for new homes and they allowed you to punch in your zip code and they would then give you a price.
With our current zip code, the design she liked priced at just under $100,000. She then punched in our old Seattle area zip code and it priced at over $300,000.
And in neither case did it include the land. FWIW, I purchased my neighbor’s 20 acre knob with two streams and gorgeous view for $2,000 an acre. Our old Seattle area address would have cost a bit more, even for a 5,000 sq ft postage stamp lot.
I’m slapping up a 15x9 sheet metal building for my zero-turn and garden tools for $400. Sure, I’m doing it myself but it’s fun and easy. Gravel floor at first
And no permits. I’ve already built a 16x8 shed and an 8x8 chicken coup and will hopefully get my 36x36 garage done this summer. That one is $17k including concrete slab.