Well, the idea can be extended to gals too of coz. Supposedly u have got all the lenses u need to cover all the ranges, then newer lenses with some extra features come out or newer camera bodies come out, won't ppl want to upgrade to those? (Financially allowing that is) From what I have observed, that seems to be true for some ppl. Not that it is anything wrong with it. Just feel that photography is not just about taking pictures, but also having the equipment as there is a "collector" in all of us and sometimes purchasing a new product increases the level of interest in photography?