Late to the party here but it's really important to point out the 50 mb/s capability of the c300. That's a big deal for broadcast standards.. And even if you don't shoot for broadcast, it still sets the bar for market saturation, resale value, etc. There's a reason that the ex1 and ex3's have had a 2nd (and third) life in the industry, while many of their newer peers have come and gone. I did a shoot for Nat Geo recently and we had all sorts of toys, HDX900's, F700, etc. and the EX3 still was the most used cam.