The 5D MK III is a fine camera, but was not worth the difference in price to me, I had big time issues with not being able to see the AF points in low light, and since I always use the center point, the 5D MK II dos very well.
I returned my 5D MK III and managed to use the Canon CLP to buy a refurb for $1407. It had about 385 shutter actuations, virtually new. I had sold my original 5D MK II for $1700, so I did ok.
At some point Canon will be selling them as refurbs, and I'll consider one then, if its on the CLP list of available bodies..