In most cases, I see little real, added value in a live video feed. What I find more generally useful is simple desktop/screen sharing with audio (i.e. GotoMeeting, TeamViewer)
If you must see the participants, allow a photo/avatar. Watching real lips moving in a stuttered video is quite chic and nouveau and all ... it's nice with family ... but it doesn't really add much value in a typical business setting IMO.
As with most things, there are exceptions but I use desktop sharing way more often.