Swap???

I have a 2003 xterra XE with the regualr 16'' rims, and I was wondering if I go to a Nissan dealer ship will they swap my rims for the charcoal colored rims? I will pay the difference, but does anybody know how much this trade will be worth? Or where I can find the charcoal colored wheels for a good price (besides ebay)? thanks

Um, try asking your local dealers if they'll swap. I doubt it, they won't "downgrade" another vehicle on their lot, but I'm sure they'll sell you a new set