Viper1 on 18 April 2010
It's a decision by Wal-Mart. They used to provide NPD the data but several years ago (2003 or so) Wal-mart didn't renew their retail data contract with NPD and stated they'd no longer offer their sales data to tracking firms as a means to prevent vendors, product suppliers and competitors from gaining too much insight into the retailers business details.
The rEVOLution is not being televised
