Where can I buy NU?

I want to buy a boxed version of NU15, but it doesn't seem to be in any of my local stores?  Wasn't it released on Jan. 16th?  Which retailers are selling it?  I downloaded the trial version, but I want to buy a "hard copy" rather than get a product key from online.

I want to buy a boxed version of NU15, but it doesn't seem to be in any of my local stores?  Wasn't it released on Jan. 16th?  Which retailers are selling it?  I downloaded the trial version, but I want to buy a "hard copy" rather than get a product key from online.