Freakonomics Blog » If Crack Dealers Took Lessons From Walgreens, They Really Would Be Rich
Amazing price difference of more than $100 for a bottle of generic drugs at Walgreen's vs. Sam's Club. Tie this back to the principals in Why Smart People Make Big Money Mistakes, you go to Walgreen's because you always go to Walgreen's. Also worth considering that even after you have shopped around for your expendables it is worth shopping around again.
Freakonomics is a book that has a blog with an continuation of its lessons.
