When Apple reduced its price on Aperture, I commented that this was a moves towards the mi-market somewhere above iPhoto (obviously) and somewhere below Lightroom (or so I was assuming).
Bill McCarroll, a renown Nikon photographer, just did what I though would not happened: he moved from LR3 to AP3 !!!
It sure has to do with all the good reasons why on a Mac a lot of photogs use AP rather the ‘the other one’.