Has anybody in the forum used this lens and stepped up to it from the prior generation (which doesn't have the VC)? My older Nikon's focus system has more or less died and this is an ideal replacement. I don't usually shoot indoors or no/low-light conditions, so I am not inclined to think I'd need the VC, but I also use a tripod about 10% of the time, so there's an argument for the VC. The other differences between the two seem to be anecdotal (one feels "sturdier" than the other, etc). If anybody's used both, any impressions? Or anybody who has used either can chime in too.