That would be nuts.
Imho this isn't the point, people buying all kinds of premium products can be called nuts.
But with the 5d3 release and the multiple delays for lenses and cameras, many Canon users have proven to be rather resistant against "jumping ship". Probably simply because they like their long-term brand, Canon service, Canon usability, Canon whatever and are as conservative as Canon themselves. If you have €25k lenses, another $1000 more or less for a camera that actually makes use of their potential resolution is a minor expense w/o running into compatibility issues with adapters.
That is not really the point. Existing users may be committed to a particular brand, but new users are not. By not competing effectively in the market Canon might think that their current user base will keep on buying their stuff, and that may be correct, but new users are going to buy the best tech available now, which is not Canon. And those users are going to show life long loyalty to whatever choices they make now as well. So, the damage done to Canon's market share might not show up tomorrow, but in a decade or so from now the effects of their short-sightedness is going to manifest itself.
My expierience is the oposite: i know 2 new Canon users, who bought a xxx Line with kit lens who told me, that Nikon would no be on a good Level to date, and a Canon cam would be better. New users often are uninformed and buy what their friend have or wat they see most frequent.
Therfore the market leader is in a Position which is quite comfortable and Canon uses this and is for sure the less innovative photo brand at the Moment, but the most profitable (wich means nothing else than that we pay to much)
To Friends who asked me for advice (for Safari/wildlife) with around 1000E Budget bought 24MP Nikon 5100 with 18-55 & 55-300 tele instead of of Canon xxx with 18MP and 18-55 & 55-250 tele, which gives much better Resolution on distant subjects
For them ist not a question if there is a 17mm TS, or a 8-15 fisheye zoom and which 600mm 4.0 is the better one
Means, this politics (of non inovation) is dangerous and the user opinion can Switch, like about Nokia, Long time they were told to have the most user friendly mobiles) even if there Situation is different in detail