Wal-Mart Again Helps Low-Income (not to mention middle and upper income) Americans

I just loved this little blurb from Grace-Marie Turner at the Galen Institute: Wal-Mart announced yesterday that it will soon offer a 30-day supply of nearly 300 generic medicines for just $4 each. Target quickly followed, and surely Walgreens and others will be close behind. Who says that competition doesn’t work?
Wal-Mart’s program is starting in Tampa Bay and will include the entire state of Florida by January, then spread to stores around the country.
Not to be outdone, Target announced it is matching Wal-Mart’s prices in Tampa Bay first, with other stores to follow. Three cheers for Wal-Mart for getting this started!
Generics already are cheaper in the U.S. than in Canada, so how long do you think it will be before we have Canadians coming to the U.S. to get their prescriptions filled here?