Why a 35mm f/1.4L? In which sense is that better than the Sigma 35mm f/1.4 that costs half as much? Or even the Samyang 35mm f/1.4 which costs a quarter of the L price?
http://www.the-digital-picture.com/...LensComp=771&CameraComp=0&FLIComp=0&APIComp=0
http://www.the-digital-picture.com/...LensComp=829&CameraComp=0&FLIComp=0&APIComp=0
Edge sharpness, and overall optics in the Canon. I struggled with the decision as well, but after getting the 35mm, I was very happy with the results.