My impression of it is that it will be significantly lower than traditional text ads becauset requires a click through after viewing the ad. Does it have a higher cost per click to compenstae for lower clickthroughs?
Video ads are extremely limited at this stage. For one thing you won't find them easily on your sites and for another you won't be able to track the performance of video ads. (Normal ads get thrown into the mix as well). I doubt that anyone would be able to give you an answer to your questions.
well I think that conversion will be pretty good because they are more interactive and only interested clickers about the ad will click the video preview