Personally, I do not upgrade every model... I am happy with my 60D and get great pictures with it. I would rather buy glass than incremental improvement, better glass has benefitted me more than better sensors. If the 70D or 7Dii is worlds above the 60D I might consider it, but I will probably wait for the 80D or 7Diii. It is hard to see great improvement from one model to another but if you look back over several generations the improvements are obvious.
How do you expect the 7DII / 70D will be received initially -
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