Upload & Sell: Off
At the end of the day, the consumers can't sit around the campfire and decide what a new camera 'should' cost. Canon will decide what a camera costs based on the amount of waste in the sensor process, the R&D costs, what the market will bear, etc, etc. If Nikon has a camera that is roughly similar, it doesn't mean that Canon needs to match that price. Apple would be a great example of a company that has consistently charged double what the competition charges and profits continue to soar.
We have seen what happened when the 5D MkIII was introduced for an outrageously high price in the beginning - sales simply didn't work out so well for Canon. From what a store manager in a big photo store recently told me, it is now selling a bit better since its price dropped a lot but still not a big sales hit by far. Overpriced gear is simply selling in a much smaller margin. And I believe that Canon as well as Nikon (and others) very well need to balance prices between each other otherwise people simply jump ship or are waiting for a severe drop in price. Talking about Apple, they had some very innovative and unique products for a while which they used to drive prices up. Now shares are dropping since people more and more switch to better Android phones and more compatible tablets - we are still waiting that Apple comes out with something new again. Same with Canon- if they are not quickly innovating and compete with better sensors out there, they will have a severe problem in their semi- and professional camera segment. Competition is not sleeping!