The biggest part that bugs me about the necessity of compromise in the product lines is Canon gives us this new body in the lowest FF range with better high ISO ability but lops off that benefit by keeping it entry level. Why was the 6d line announced after the 5D3? It should have come out beforehand. So the newest tech/better sensors were IN the pro body.
I WANT the smaller form factor for weddings, I want the cleaner high ISO, vari-angle touchscreen for odd angle reception dance shots...yes please, I want less MP because I don't need that much info for 1500+ images that'll never be printed larger than 8x10, and I want dual slots for security.
Spending more on the next level 'pro' body means I have to carry more weight, and not have the best performing sensor available... drives me crazy.... just for security/piece of mind 2nd card slot(not caring for the other differences).
I've said all along, I'd be willing to pay more than $2k for the size of the 6D, with 2 slots. Keep everything else the same for all I care. I'm comfortable with all the other line separating differences. I'll put up with 1/180, I'll shoot at f2.8 vs f2 to keep it at 1/4000 vs 1/8000. I'll take the tighter packed AF points. I just want that smaller body with 2 slots. ugh.