If you are a startup, you should consider getting yourself on the beta list of Videolean, a tool that promises to help you create promotion animation videos for $100 or less.
It is amazing to see what you can pack in just 60 seconds of video. Take Videolean’s on video for example: they pitch the problem, the solution, and present how the tool works.
A tool like this can replace a large number of slides in an investor presentation.
(P.S. all these videos seem to be using the voice over of the same guy, who probably costs more than $100, I wonder who he is).