It's all about how many people will use it.. if it get that far that 1k people visit it daily then I'm positive that the site will live on, but if it gets inactive and users don't upload their content just wait for some1 else to do it.. then there is no reason to keep it alive just for 10daily visits or so..
But I think we will succeed.. as people really like to watch one related content in one place and not to search for it all around and have an opportuity to upload their content and advertise their addon for free for people who have the same interests