To check stores in your area:
Go to http://brickseek.com/walmart-inventory-checker.
Enter 43942524 for Item ID and put in your zip code.
There are copies that have a red sticker on the front that says bonus included. These copies contain both the Wii and Wii U disc. You can trade the Wii U disc in to Best Buy for $27+GCU bonus if you have it. Therefore you can net the Wii copy for a few bucks.