There's been a big buzz lately about using video to increase your sales, and since I use them I thought I would jump in with my 2 cents. Video for video sake is not going to get a showing or a sale. I always consider video one of my last marketing steps although I do it as soon as possible. Remembering there are two parts to the listing(keeping the seller happy and finding a buyer) I think it's important to remember the client wont' understand if there's no yard sign because you were busy doing the video.
Although I've seen alot of 3rd party companies on AR trying to pitch their product I havent' seen a single comment on the video upload feature for Realtor.com- Last year Realtor.com introduced a video upload feature for it's showcase members as a way to bring more value to it's site.
Since showcase members have free links to virtual tours it might be better to make a high quality community video that you can use over and over again. I believe buyers want to know as much about the community as they do the house.
Lastly, eventhough I took a poke at the 3rd party hosters I think it's fair to point out that they may provide a higher quality of playback. Even if you have the very best lighting, camera, and editing, all of the major hosts like You Tube take your high quality product and trim the quality to fit their needs. So don't be shocked when you see a lower quality come through once you've uploaded the video.
Here are two examples of how I use video: