never forget it's in their best interest to prevent you from saving it to your computer. if you can't save it, if you want to see it again, you have to hit their banner ads again. It also leaves control of the content in their hands... if they want it to "go away", they delete it from their site, and it's gone.
The biggest problems I have with that are (1) neat things that I want to watch later that I know are going to get removed or rotated out after awhile and I won't have access to them anymore, and (2) when someone needs to do a presentation etc and isn't going to have internet access and wants to use the video.
