If you were confused as to what Hov meant on this verse in "Empire State of Mind" here is the explanation....
In Young Jeezy's song "24-23 (Kobe-Lebron)," Jeezy uses the players' jersey numbers to articulate the price he's paying of a kilogram of cocaine.
The chorus of that song goes, "I used to pay Kobe , but now I pay LeBron ." This means that he used to pay $24,000 for a kilo of coke, whereas now? He only pays $23,000, you see.
So, in "Empire," Jay-Z takes this one step further, so as to show his impressive status in New York. He suggests that, while Jeezy may be paying $23,000, Jay-Z is paying a mere $3000 (expressed as Dwyane Wade's jersey number) for a kilo of cocaine.