I worry that some lazy PR/marketing folks think posting a video on YouTube fulfills their obligation to their client.
Well, um-mm, no, it doesn't!
The next and necessary step is to GET PEOPLE TO GO AND VIEW THE VIDEOS ONCE THEY ARE POSTED!!! If they are not going to publicize the fact that the videos are there, then it did almost no good to post them. That's like putting up signs for a yard sale on telephone poles in a different county!!!