This I'm not sure is a fair call though BH. You show me any camera manufacturer's brochure that shows anything other than well lit sample images, at any ISO... I vaguely remember some Canon sample images posted online for one of their 1D bodies now, can't remember specifically which one, and they're all studio lit at ISO whatever too.
I'm not saying Nikon > Canon in any way shape or form. Just that Canon's the first thing that comes to mind and they're also the main rivals in the high ISO quality stakes. Although I'm sure doodah will take offence anyway at what I've just said once he reads this.
And also I'm not sure about the culture not being one of available light, if for the last 1-2 generations Nikon have been the ones really pushing low light performance rather than megapixels.
Fair enough I guess, since the brochures are meant to sell cameras.
I'm also not sure they champion the system, if anything Nikon's to blame because they'll be the ones who target these photographers and say, who can make my stuff look good? That'll be someone who can take stunningly lit images that have impact so people will look at a 500 pixel image on a screen and go buy buy buy... looking at this thread they've certainly succeeded
Speaking of champions of Nikon, off the top of my mind, names like Joe McNally, Scott Kelby, Bob Krist are strongly associated with the brand and really help promote it, either directly or indirectly. They have the unique talent of being good photographers as well as convincing educators / presenters
Canon also has their own ambassador program, and it's interesting that among their choice of photographers to represent them, quite a few of them are available light photographers, or who have professed to be at some point in time Certainly I think more than those that "represent" Nikon. Of course, my conclusion is hardly scientific and I'm sure with the advent of the D3 / D3s there must be many many more talented photographers all over using less of artificial light and shooting available light.....
As to needing an f1.4 lens; I find myself questioning that more and more in all honesty. Yes I'm not a war photographer, but I shoot news and weddings. In the former I never ever bring any of my f1.4 lenses around, in the latter I still do but I never feel the need to use it because of light issues anymore. If I do it will be purely for DoF reasons. And I'm not using a D3s either. Or a 1DIV.
Maybe I'm not a "hard" or "true" PJ because I'm not using primes only, but if you disregard that, I personally find having a zoom far more productive than the light gain. And with the quality from cameras these days f2.8 is plenty good enough in sooo many situations.
Of course it would be foolhardy to dismiss anyone using a zoom as not being a "true" PJ, since among the names I've mentioned, some do use zooms. My point was that the 24mm should have been tested and evaluated by someone who shoots predominantly available light (hence the list of names..), which I believe was the original point of making it f1.4 in the first place.
I actually wish they also have a line of (updated) f2 primes that are smaller and lighter, but no less better built than their top end ones, and priced accordingly (aka cheaper ).