- launch products that the consumers didn’t know they need
 - yippie! high potential returns
 - prototypes advantages:
 - risk reduction: fail in prototype before actual product
 - get user feedback, meet needs of customers
 - visual representation: convey accurately to customers what the product will be like
 - time + cost saving: fail in a cheap prototype, not while developing expensive product
 
disadvantage
- costly, especially for small businesses with tight R&D budgets
 - time consuming - time is money; no guarantee that the prototype will be successful
 - stakeholders misinterpret prototype
 - prototypes sometimes focus too much on aesthetics and not functionality.