It just depends on which camp you talk to.
I live in Los Angels and work in Television. I know a lot (and I mean a lot) of people who own the various Canons (5D, 7D, 60D, etc..) and almost everyone one of them shoots only video.
I mostly shoot video, but I do use stills for doing Timelapse photography. Sometimes I take pictures of family events, but that's about it for stills. For work and independent projects, it's only video.
This is a still camera forum so everyone on here is a stills shooter. If you go to DVXUSER.com or Cinema5D, those people use Canon's exclusively for video.
You have to remember, video is here to stay and the ONLY reason the 5D was considered "Revolutionary" and made huge headlines, is because it was the first affordable large sensor HD video camera. Without the HD video, it would have been like the Nikons, just another Camera. Nothing special. Canon took a huge leap over Nikon because of the video.