I don't shoot or display 4k.
I shoot stuff for TV and so most of the time don't even need 1080p.
For the folk who really do shoot and display 4k then they'll want a better camera. You wouldn't buy a ferrari for a wee runabout in town.
I don't do compositing (alpha layer graphics from AE at most) and so this camera looks perfect for me!
Adult audio, fixed sensor glitches, nice layout and handling.
Blackmagic... forget it, I'll use my 2/3rds ENG instead.
RED... forget it. A) I don't want to be on a waiting list for B) an incomplete camera that C) will give me nothing but hassle when I get it.
C500 is overkill, was seriously considering the C300, but will take the C100, it does everything I need, it'll work out the box, will have decent support, and thats really all I need.
It will force my hand in switching finally from FCP7 to Premiere though. A good thing, ultimately.
DSLRs spoiled us with expectations, but folks have forgotton the law of diminishing returns. And folk who think this money is too exepensive for a camera have never priced a real tripod or professional microphone.
As a package the C100 looks perfectly pitched for owner operators who want large sensor shooting without the myriad DSLR caveats.