I think you probably are! If you are looking at the Nikon 1.4G at £1200, don't believe all of what you hear in the reviews. People say that the focus is slow and sure, whilst it's not as fast as the 24-70 or 70-200 it's by no means slow - it'll happily track people jogging at a steady pace on a decent body. When people say "it's very sharp wide open and doesn't get much sharper as you stop down" that you can believe, at f/1.4 it's incredible, f/1.8 is unbelievable and as sharp as it is at f/4 or f/5.6