I can't imagine that anyone is going to send a 5D3 to Japan for repair; I don't know why you keep acting like that's normal. If Canon USA breaks tradition and doesn't honor the warranty, they'll fix it for a fee (and it's unlikely the camera would need repair during the one-year warranty anyway).
Also, where are you seeing new 7Ds for $1600? BHP has the body for $750, and the 7D2 for $1700. Used prices are a bit higher than they were (and too close to the new, for my taste), but nowhere near $800-900. The highest one on the first few pages of the classifieds here is $700 (and color me stunned if it sells at that price).
My whole point was no one would send a camera to another country for warranty. Especially if shipping was the same cost as what they would be saving buying from a different outlet. So on the contrary of thinking that would be normal, I was stating it would be anything but that.
And on the 7D, I was mistakenly looking at the 7DII. Thank you for pointing out my error.
And on what people are asking for used a used 7D (I never said what was being paid, only what people were asking for them). Here are the current prices on my local CL for a 7D Mark 1:
$680 w/ grip
$1000 w/a ef-s 18-135
$950 w/a ef-s 18-135
$900 w/ grip
There are a few more but they are in bundles.
These are not necessarily fair asking prices with the price of the new 7D Mark 1, but they are the asking prices regardless.