What is the best place for deploying Video Analytics?

Should we install Video Analytics On the Edge (a DSP based solution on or next to the video camera) or in a centralized location (a Server based solution)? Or maybe it could be one of the two depending on the topology of the Video Surveillance network? Or maybe it does not matter

If you would like to voice your opinion go the following Poll

http://polls.linkedin.com/p/29509/saqts