Why does everyone need to keep making up excuses?
The APS-H sensor is a misfit...
People keep making excuses because they want to have 1D4 IQ with a 7D body/price.
But what is missed is that technology marches forward and that you can probably now put 2+ year old H-sensor quality in a today C-sensor. Canon continues to invest in developing crop body lenses and there is a clear differentiation between the APS-C and FF.
Looking forward, there will probably be sensors that allow switching between FF and crop, but we aren't quite there yet. My guess is that it won't be that long, though.
I stand by my previous claim. If a new H sensor camera comes out, I will file down my 1D4 and eat the filings.