Wal Mart has said they are going to start selling 291 generic drugs for $4 for a 30 day supply. I wonder if any of the ones I'm currently paying $20 for through my insurance plan are included. I wonder if there is really anything to this Wal Mart plan, or if it is just a publicity stunt. I also wonder how CVS and Walgreen will respond. Will they meet or beat Wal Mart's price? The drugstores have a larger markup on generic drugs than on namebrands. Given that, Wal Mart has a lot of clout, and may be able to operate on lower margin than the other drugstores. Could this be an example of how free enterprise can do more than any government effort to reduce medical costs?