If you stop at modeling hulls, you will miss the beauty of Rhino, which is that it is not a dedicated program.  Hulls are one of an infinite number of objects that can be modeled.  Most practitioners with any amount of Rhino experience have built large libraries of standard parts that can be used as blocks to outfit their models.  Entire superstructures have routinely been modeled in Rhino and the resulting models used as input for NC machining of tools to build composite parts or NC cutting data to nest and cut metal parts that fit with accuracy not possible a few years ago. All the models on our pages are products of Rhino.  

If that's not enough, Rhino provides a full suite of capabilities to allow you to use it as your drafting program as well.  Blocks, text, dimensioning, layouts (similar to paper space in AutoCAD) and details (similar to MViews in AutoCAD) make your 2D drafting tasks easy and efficient.  

We also offer a wide range of Tutorials and other training options to make your introduction to Rhino as effortless as possible.