MSRP on the new G's is down by almost 10k (on some models) compared to the 2012 MY. I think starter is right, if you wait you decrease the odds that you'll find what you want.
I really don't think pricing will change much in the next few months, just availability will go down. I remember trying to haggle with a dealer on a new 370Z a couple years ago, and I'm confident they just waited for someone to pay the price they wanted than let it go and lose money.
Seeing how used ones with 10k miles or under are going for low 30s, it makes a lot of sense to consider new for just a few K more.
Check out
www.insidenissan.com, and see what the VPP pricing is going for. That gives you a pretty good idea on invoice pricing, and you may be able to haggle your way down to somewhere close to that.