Supposedly, Wal Mart is in talks with Apple to sell the Ipod Shuffle. Im willing to bet that if they do, the "coolness" factor of the Ipod takes a nosedive, especially the Ipod Shuffle since its basically a flash based player that might hold a max of 100 songs with no easy way to play songs in order and it doesn't even have an LCD screen.
I got a san disk 512 mb player with an LCD screen, FM radio and voice recorder for $80 at Best Buy in december. Granted, its not as "cool" as the Ipod Shuffle, but it has more features and was cheaper by $20.