I have heard this point made several times now and still don't understand it.
There is in North America a $350 difference between a D3200 and a D5200.
There is a $450 difference between a D5200 and. D7100.
There is a $800 difference between a D7100 and a D600
There is a $1000/1200 difference between a D600 and a D800/800e
There is a $3000/2800 difference between a D800/800e and a D4.
What I see is a widening price gap as one moves up the chain, which makes sense. If the 'there is a price gap' logic applied we would expect to see new FX models slotted between the D600 and D800 and the D800 and the D4.
Remember that under the old lineage the price difference between top end DX (300s) and entry level FX (d700) was around $1000.
The fact is Nikon could sell less D7100s for more money. If they priced it at $1400-1500 I don't think people would think it is overpriced (but for the current D600 price). The Canon 7D sells for more than the entry price for a 7100 and is not nearly as good as the 7100 at least based on specs. I think this new regime is meant to sell more DX cameras to the real money making consumer/enthusiast market. Smart business by Nikon even if it is alienating a niche market of 'Pro Body DX' loyalists.