On eBay, they've been going for anywhere between $800 and $1000 for everything.
You won't be able to buy them for $900 from the dealer tho. That's the manufacturer price for the package at purchase time. If you try to buy it retail separately from the dealer, they'll charge you $850 each per wheel, $300 each per tire, and $450 each for tire pressure monitor.
Given that the local dealer wanted to charge me $70 for the cabin filter, when the nearby Nissan dealer wanted $30, the price they want for the wheels/tires doesn't surprise me.
