Depends. Driving it will cost a lot more money after food, fuel, hotel, and maybe loss of income. Shipping it will cost you money and a lost opportunity to see the country and enjoy some quality time.
I have a 24 Nismo. With stock exhaust, it resonates something fierce. With the nismo track exhaust, it makes a different noise that sounds like it's coming from the speakers. Yes, my noise-cancel BS is turned off already....
Nah. It's still quiet on boost. I call mine a sewing machine, too, with stock exhaust. The Nismo track exhaust sounds way better, but I don't like its build quality.
I suffered through the same decision. I drove the Performance and then the Nismo. I got the Nismo in February, no regrets. For me, my Manual itch gets scratched by my 240Z in the garage. I also manual shift the Nismo 90% of the time... Good luck!