For anyone contemplating purchasing a new Nikon D90, it appears the camera is now in limited supply. B&H still has some, but who knows how much longer, or if there will be another shipment. The D300s body is already back-ordered, as are some of the D90 kits.
Still in stock for the time being at B&H, and other retailers will be similar.
An undeniable paradox: To think that there is any such thing as an absolute rule is at worst naïve, and at best, shortsighted. There is no such thing as an always-true, all context- or situation-salient, absolute rule that always holds true…including this one!