Well walmart does have control on apple.
It sells all ipods cheaper than any other store including apple store.
FYI apple store refurbished ipods vs walmart new ipods are $ 9 - 10 bucks different.
Walmart carries a variety of iPods and players for less. From a wide selection of the Apple iPod Nano and Apple iPod Touch (5th generation) to Apple iPod Touch (8GB) and the Apple iPod Shuffle, the selection of Apple iPods at Walmart has what you need. Choose from the Apple iPod Touch (32 GB), Apple iPod Touch (16 GB), Apple iPod Touch (64 GB), Apple iPods (2 GB) and array of other electronics supplies to suit your needs.