In this article from Mashable, Tom Wentworth discusses how video content on your side increases conversion rates by 86% and that 44% of customers purchase more products on sites that have informational product videos. With video, light and sound come together to create an informational piece that is informative and engaging to customers. There is a far greater chance of building an emotional bond and a long lasting relationship with your customers, if they can get to know you and your products through video.
http://mashable.com/2014/08/14/website-changes-drive-sales/#5CsqnPd61Eqz