Quote: People who say build big are asssuming you will love chickens. If you've never done chickens before, there's a chance you won't like them. In which case, I'd build small. Why invest a lot in something you may not enjoy? You can always build bigger later. The first small coop can be used for brooding, or isolation, or a flock within the flock. It won't go to waste.
or you can get a 2nd small coop when your first is too small.