I agree that videos are very important. In this age of social media and instant gratification I think it's very important that if someone wants to get their music heard/people interested in them, a playable embedded music video on instagram & facebook is the way to go. I heard some great advice the other week and that is that most people aren't into music like we are. Most people like the odd song they hear and maybe a fan of a big established artist. So in that respect, a short, eye catching video would work. As for videos, i've yet to put one together , I wouldn't know where to start, I think a cheap option would be to try and get a film student to do one for free.