You are right, Michael. The $7500 Canon XF305 camcorder offers 50Mbps MPEG-2 Recording and 4:2:2 Color Sampling, even though it has 3×1/3″ CMOS sensors. I don’t think it is fair to ask us to purchase the PMW-500 in order to record at 50Mbps.
I believe Sony would make more money by giving their EX3 camcorders this capability, because more videographers will stay using SxS Cards to safely record 50Mbps/4:2:2. One of the main pros of the EX3 -besides the great technology it offers- is its lightweight and small desing, which is a great advantage when shooting drama on location. Its small footprint allows me to see more of the interiors (small or large rooms) and get a wider variety of angles.
It is great to keep the camera configuration simple, without the need to get accessories that will make it bulky. That’s why I’m interested in asking Sony for this software upgrade, if possible.