This one is a pretty easy sale. Founders are busy building stuff and shouldn't have to spend their time, at least not at an early stage, designing one-pagers and decks for investors.
The founder of Invisu, Donna Griffit, spent the last several years helping Israeli start-ups tells their stories in a more engaging way. She then integrated her expertise into Invisu and helped automate the process. Simply put, with invisu, start-ups -- or anyone -- can create dynamic and engaging one-pagers with little effort or design expertise.