you might want to have a better understanding of rental prices before you try to make a point... there is a day rate and a week rate is usually 2-3 days and that can be shaved more with a long term (3 months +) rental....so your math is way off.
Some of those DPs on your list used the REDs because of marketing deals.....RED gave them the cameras (and techs) for free...a producer always likes free vs. paying for a chunky rental......just sayin'
Sorry, but your synopsis is incorrect....this lens is built from scratch by the Cine lens division, not re-housed, redesigned, or re-anything by anyone in the still lens division. I have it in my hands right now and if you were here and had it in your hands, I know you might think differently....and this is the first in a series of Compact Servos. Sorry for jumping on this but there is too much misinformation being thrown about by people that are guessing things based a spec sheet, not actual knowledge.
spend the $60-70 and buy the real one, especially when used in a Canon camera.....there are places to go cheap and batteries are not one of them.
For ease of use, best in low light (3200 ISO clean with 6400 ISO having a little noise show up but Canon made their noise "move" so no fixed noise pattern and a film grainish look), solid performance with no issues, and Canon's DNA or look...meaning face tones are nailed (less time in post). Also, the C100 or MK II have the same chip as the C300 & C500...a 4K chip down rezzed in camera to 1080 and, for example of many, the winner at Cannes 3 years ago was shot entirely on the C300...."Blue is the warmest color".....https://www.youtube.com/watch?v=qOiug_u7Wns......looks pretty cinematic to me...and a few others......you are going to spend a good chunk of money and these cameras are rock solid.
DVXuser.com, DVinfo.net (with real names used).....there are many users that have bought the C300 MK II. Here in town, there are a lot that are shooting for Netflix (approved camera). Also, Barry Goyette who does post here occasionally, knows the camera very well and has shared much on the various blogs. He had a C300 and now has a MK II.