My first digital camera was a Canon 350, with which I acquired a couple of cheap lenses. I followed that up with a 40D and a couple of better quality lenses and finally, a few years ago, I bought my current 7D and added some fab lenses. So for me, every new crop sensor camera has been a big step up and opened up more possibilities as to what I can shoot, but now, if the CR post is even roughly correct, I find myself near the pinnacle of Canon crop sensor cameras already I had so looked forward to buying the next camera up from the 7D and finding not only better IQ but more things that will enable me to take a more varied set of shots. Some of the rumoured features will help me in my quest, but ultimately if the sensor isn't a decent improvement over the one I already possess, I worry that I am now stuck with the same level of technology for the next few years, that I have had for the past 3.
Of the course it's the photographer that takes the shot, but every time I moved up a peg with my camera, I found I could take better pictures (I seem to mainly do sporting types of snaps). I hope this isn't the end of my journey (in a sense) and that Canon wows us with a decent step up in it's new 7DII