The prototyping process is invaluable and iterative, typically starting with a rough model followed by more refined versions. Prototypes uncover issues that are not obvious. They start conversations and provide valuable market insight.
A prototype is a valuable way to promote your idea to a potential licensor or to create pre-launch marketing excitement.
Prototypes also give stake-holders the opportunity to evaluate features, function and appearance long before committing to expensive production costs. Ultimately, the process ensures that the best possible version of the product is launched.