This simply shows that you worry about what you really are presenting and you're simply not only some sloppy amateur who flips on the cam. You would not market with bad looking websites, so don't market with bad looking videos. Build your Videos QUICK and CONCISE. The best video marketing tips is going to be the ones that pinpoint the current, relevant times by which we live. This isn't the 90's anymore where people would view 30 minutes of Tony Robbins infomercials.
This is actually the digital email list environment where people completely Live and eat the model of quick and concise. Think about it: texting, tweeting, Facebook, Google; fundamental essentials most popular tools of our digital environment plus they all focus around the type of quick and concise communication. You want individuals to be careful about your videos? Make them short. Communicate quickly inside an easy manner.
You have to be CONVINCING. It goes along with the busy digital environment which was focused on in the last point. Imagine your viewer has his cell phone in the hand and it is dying to make a tweet or send a text. Now imagine what it is likely to take to prevent him from doing this. That is the degree of "convincing" that you have to take it to inside your marketing videos.