The VR will do a great job at your airshows and shooting your son and his rc plane. The lens gets knocked for being slow, because it is a f4.5-5.6 aperture. That is a little misleading, because of the VR. You can hand hold the lens about 2-3 stops slower than you can a non VR lens. The rule of thumb is to hand hold at a shutter speed at least the reciprocal of the focal length. Example: With a 200mm focal length, pick a shutter speed of at least 1/200 (or the closest step 1/250). Now, with the VR, you can usually shoot 2 to 3 stops slower and still get a good shot. So you can hand hold at 200mm at about 1/60, or even 1/30. Try that on your 80-200.
The other rap on the VR is the focus speed. That's a valid knock. The AF on the VR is good for focusing stationary or really slow subjects. Does a fat dog hate fast cars? Well the VR does. I've tried fumbling with the limit switch, but I find it very unhandy, and besides, AF is over rated. Put it in manual focus mode and fire away.