Bob was more than mildly astonished when he went to our local office supply store and found that a set of four refill cartridges for his Canon color inkjet printer cost $60. Instead of buying, he went home, went on the Internet, and ordered a set for $15 from an unauthorized supplier.  He just picked the first supplier on the list that had good customer comments. A few days later he got two full sets of ink cartridges in the mail – eight in all. Let’s work this out: That was the equivalent of two $60 sets from Canon, which would have cost $120. So the $15 for two sets from an outside supplier cost just one-eighth as much, or12 […]

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