I see absolutely no point to upgrade to a 5D3. Especially for a $1,000+ price increase. 61-point AF system? Who cares? Who shoots with multiple points anyway? Center-point focus and recompose. That's how any serious photographer shoots anyway. Do people want their cameras to compose their shots for them too?
Leave it up to your camera to pick your focus points and you will end up lots of throw away shots.
Al the pros are nodding in agreement with this comment, and all the noobies are in denail... LOL
That's an interesting comment. I guess all the BIF, sports and action photographers making money out there with 7D's, 1D's etc. aren't pros. It's a certainly possible to shoot action with a 5D, but you get a lot more keepers with a better AF system.
And don't think that having a great AF system does all the work for you either. Technique is still critical. You still have to be able to pull the camera up and have the subject in the veiwfinder instantly. Sometimes you need to start wide and zoom in as you track and frame. You need to know what settings to use and when to use them. It's not as easy as many think. A few weeks ago, I stopped in La Jolla to do an interview and some guys with $10,000 lenses and bad ass bodies convinced me I had to shoot the pelicans which where in mating plumage. In 20 minutes I had a bunch of keepers, and they were uptight that I was getting so many great shots with a 7D and 70-200 2.8 IS II, while they struggled with their own rigs. 25 years of shooting helps, but so does the AF of the 7D. As a team, the camera and I pulled off some good shots. It would have been much more difficult with the 5D. Sure, I probably would have been able to make it work, but why bother? Having a 7D or better quality AF system on a full frame body would be so nice to have, which is why after having $18,000 of gear stolen, I'm seriously thinking about switching to the Nikon D800.