I bought my Nismo because it was the best deal I thought I was going to get anytime soon.
I searched for over 3yrs for a 370Z. Emailed dealers in a 300 mile radius, got firm prices in writing, drove 150+ miles to test drive/inspect and make offers on others, played the year-end/early spring/leftover models/etc. cards for leverage. All but one were non-Nismo's.
In a perfect world, I'd want the looks of the Nismo (yes, the looks) and the creature comforts of the Touring, but that's not a car Nissan makes. Overall, performance between the Nismo and non-Nismo are mildly negligable.
I eventually found a private seller with a 2011 Nismo with 1,700 miles on it, floor mats, lighted kicks, trunk mat, locking lugs, and the cargo cover from the Touring.
He wanted $33k, I was all in. Got it last September and don't reget anything about it.
Gotta love Ebay.