I look at it this way: the 70-200 is a "lifetime" lens, very useful for many,many,many things. On the other hand, the 24-70mm can be replaced by or substituted by any number of smaller,lighter, less-costly lenses, like even something like a 24/35/50 three-prime kit that's made up of relatively light, small, and fairly low-cost lenses like 24/2.8 AF-D, 35/2 AF-D, and 50/1.8 AF-D for the least costly setup; the 70mm is in the 70-200 zoom. OR.....you can buy higher-end primes from the all-new f/1.8 G-series....or mix and match....maybe buy a Sigma 35/1.4 for the middle range, and get something that the 24-70mm f/2.8 just does NOT offer: the ability to shoot semi-wide-angle photos with a sharp foreground, and then a fairly out of focus, blurred background from the sheer speed of the f/1.4 lens. OR...on brighter days or when shooting with flash, say, use a 24-85mm VR-Nikkor zoom lens with AF-S focusing and VR and a wider range of focal lengths. The way I see it, the big, long, heavy 24-70 f/2.8 AF-S G Nikkor is a lens that has many,many alterantives. The 70-200....not so much...it is the MUST-HAVE zoom, whereas the 24-70 is for many people, a lens that can be done without, and better, or different tools substituted.