I've not personally ever been without a F/F, having changed from analogue (EOS 5) to F/F EOS 5D Mk I before a 5D MkII. But in parallel with the F/F set up I use for portraiture, studio work and landscapes, I also use a crop body for wildlife and sports. My long lenses are even longer, and no slower. I just don't see how I could cope without a crop body, (OK I do, I'd have to crop all my images!), so I'm on my bended knees hoping Canon will at long last perhaps this year bring out an up-to-date replacement for the 7D. To my mind that would please a lot of people and it would certainly satisfy me. No talk of big superzooms or 1DX, PLEASE! My wallet will cringe. The 7D is sorely in need of replacement, but WILL THEY, I wonder? I've been looking at Pentax and Nikon with a view to replacing the whole lot, - Pentax K3 offers 24 Mpx, weather-sealing, IS, and both the 60-250mm zoom and 300mm lenses are f4 rather than f5.6 as are my current 70-300mm and 400mm. Nikon has recently brought out a cracking 80-400mm f5.6 VR lens and combined with the highly rated 24mpx D7100, I reckon that would make a formidable combination. The only reason I'm hanging fire on my decision is to see if 2014 brings a 7D replacement, an image stabilised 400mm, or an update for the 100-400mm. If Canon don't update replace any of these items, I'm gone. I don't want F/F (already have one, great for images where you don't WANT or NEED to be as close as conceivable - given the lenses you can afford and have at your disposal), I don't want small and light, I don't want gimmicks like folding screens, Wi-Fi, GPS, (or video for that matter but we'd better not go there). So for me, the 6D is NOT a viable option. Nor is hanging on to an outdated 7D when there's more advanced cropped sensor cameras out there. One thing Canon users like me might not be aware of by the way, (nor was I until I started looking at Nikon), is that on a F/F Nikon body, there is a crop function. This serves the same purpose as a physical crop of the image, it creates a 1.5 crop factor on a F/F body. You choose the magnification factor you want! Cropping the image reduces the pixel count of the image. But with a F/F D800 for example, (36mpx), using an 80-400mm f5.6 VR lens in what they call the DX (crop) mode, will provide a 24mpx image equal to a field of view of 120-600mm. The all-in-one answer! Sorely tempted!