They say that imitation is the sincerest form of flattery. I think you should take it as such. Here is something else to think about... 95% of the people that look at your car don't know the difference between the base and the touring/sport/nav.
There will ALWAYS be someone with something better that what you have. Enjoy your path and let that be motivation for you to set your own higher goals. Suspension and wheels would easily put a personal touch on YOUR car and can be done any time you have the funds.
You have an incredible car! To quote an old Nissan ad campaign... "Enjoy the ride!"
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'10 ZR Black Cherry Sport/Touring/Nav, Swift Springs, Stillen G3s, 15mm-F 20mm-R Spacers, SPC, Spoiler Solutions Rear Wing, Stubby Antenna