The good news is The fishing village from my map (I made lots of stuff :L)only cost 79.42 for color sandstone (7.1 w x 1.3 d x 5.9 h inches) and I didn't even edit anything. Which would make a nice game board map or something. The bad news is you don't want to know the price of the full spider castle thingy... And I looked it is fairly hollow. The program did a nice job of that.
I'd love a generic minecraft landscape with some hills and trees etc. with a flat back, so it can be put on a shelf. The flat back would be against a wall or the back of the shelf. It could be several pieces to vary the length. Just have the ends of each piece be at the same height so it's free mix n' match. Just an idea if someone out there already is up and running with mineways.