AvTvM as usual, you're not convinced yet.
Ok, this is for all the people that are not convinced that video is a basic function, nor do I believe that it affects R&D for the stills side and it doesn't affect IQ.
Lets compare Canon's current product line in terms of DSLRs.
SL1 -> t5i/700D -> 70D -> 6D -> 5D Mark iii -> 1DX -> 1DC
I've listed the above as per price and functionality, from least to greatest.
SL1 all the way to 1DX... zero difference in terms of video, its still 1080p with the same frame rates.
You can argue that the the 70D has some live-view AF crap during video... But still the price hasn't shifted the 70D from being so much more expensive than the 6D. In fact, how much of a price difference is it between the 60D and the 70D when the 60D first came out, plus or minus inflation?
Note the IQ is also slowly getting better between the SL1 (lets neglect the 700D) to the 70D to 6D to 5DIII to 1DX, while keeping the video at 1080p. Is the video a basic function now? Video function on the cameras are not any different between SL1 all the way to 1DX, the price is... what accounts for that price increase? I don't think its video.
The only difference between 1DX and 1DC is for the 4K video, and look at the $5000 price difference between them. Not worth the extra $5000 in my opinion, but some will argue about that. Nonetheless, the R&D that you think going to video isn't affecting the stills people, because the stills people are not paying $5000 extra.
As I've said earlier, the GoPro Hero 3/3+ black edition supports 4K, 2.7K, 1440p 1080/60p...
and a guy at www.back-bone.ca
has made it possible to interchange lens on the GoPro...
And, guess what, it doesn't cost $5000 extra. If I was so into IQ and compactness, I would go for it, but I'm comfortable with the size and quality of the 7D. In fact, with GoPro + the mod, plus all the C-mount lenses I can get off of ebay, its still a whole lot cheaper than the 7D plus all my current lenses. But again, I'm more comfortable with the 7D.
If you buy a car and they are offering it fully loaded for free, knowing that you will never use the Navigation system, will you say no? Price is going to be the same fully loaded or not.