Well... this has been standard on all the "enthusiast" bodies which offer bracketing (D50/D70/D80/D90/D5000/D5100/D7000...) so that tells you how Nikon perceives the targeted user.
What's nice is that the bracketing interval can be set to up to 3 stops. For practical purposes, I much prefer this. 12-14 stops of dynamic range +/-3 stops of bracketing gives me 18-20 stops total, which covers any natural situation I've ever encountered.
On a D800 I'd need to take 7 shots to accomplish this, which isn't an advantage, but that speaks more to Nikon's brain-dead pro-body bracketing. Anyway I'd take the D600's bracketing any day.