Can't decide

xweaponx

I'm going to be ordering my 2012 370z in January and I can't decide between a base with sports package and a nismo. It's going to be a 6mt with gun metallic no matter what, but the hard part of deciding is on the financial side. I'm an e-3 in the marine corps and have been saving for it since I saw it in '09. I'm going to be financing it for 60 months and the price difference a month would be about $100. My down payment is very large, so no, I'm not just some ignorant person in the military that is buying a car that is way too expensive. Obviously the price of insurance will go up too if I get the nismo. I would just like to get some people's opinions on the subject. Let me know if I left out any necessary information.

Sorry if this has been discussed before.