<p>You've already decided, but, fyi. I have a 5diii. But the honest, hand to my invisible friend in the sky, I only bought it because I'd banged up my 5dii crawling through rocks, dodging rocks, scratching up the 24-105, etc. etc. Had I known then, what I know now, the 5dii did what I needed it to do when it wasn't broken. Don't get me wrong, the 5Diii is a superior camera. Buying it saved me from the ego-purchase of the 7Dii as my backup. But the 5diii does so much more than I need, it's overkill.<br>
I'd compare it to buying Microsoft Word. Most of us write letters, stories and memos. We don't need all that other stuff, but you can't get it otherwise. MSWord6 was plenty, but they stopped supporting it.<br>
I had a major, major surprise, though, last year. I took the Lumix fZ1000 for a test drive. That puppy is marvelous! It's not as impressive looking as my main camera, and the 5diii does precision work and longer, telephoto, but the fz1000 does everything I need for everyday hip-shooting. A 400-24mm zoom, 20mp censor, Leica-class glass and clarity that blows away every other camera in it's class -- other than Leica. And $800. I carry that around all the time, now. And my shoulder isn't nearly as sore.<br>
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