Size yes, cost not necessarily. Fuji lenses for example tend to be similar cost (or more) to the equivalent FX Nikon lens.Some people want the best possible glass for their DX bodies, DX lenses should have a size and cost advantage over a FF equivalent lens and there has always been demand, just look at the requests all over the internet.
Having moved from a FF system to Crop, you have to accept that their is size and weight penalty is most lenses when compared (FF vs DX).
You sound like you are gloating about that ... sorry but (and yes this comes from a fan of Nikon's current cameras though in the past I have bought Canon, Olympus and Minolta) it will be a sad day should Nikon fail - and they are a LONG way from that. You may have missed it, but most of the write downs (the reported losses are actually not making as much profit as predicted rather than loosing money) were NOT in the camera division.Its not just this one reason why Nikon are losing more and more cash and customers year after year.
Nikon have been too slow to react to the changing market, its only a matter of time they are consumed like Kodak...... I have seen more innovation in other brands which is what Nikon should be doing considering they have been around a lot longer.
They have rested on their brand name/image..
Bye bye Nikon
You complain they are too slow to react, yet the dropping the DL cameras is actually a reaction to not being able to produce something competitive. I imagine further culls will come and some people will be sad that their favourite products end. There is going to be a period of pain and Nikon do need to make changes - mostly in the software side and perhaps marketing and customer service - but hopefully a leaner, stronger company will come out at the end.