When I go to Costco I’m always tempted to buy books I haven’t read about but look interesting, when I see them there at their cheap price. For example, I saw 1421: the Year China Discovered the World there for less than 10 bucks. I don’t read much history books, but I seemed interesting as I started reading there. Then I thought my dad might like it. Then I thought I could sell them used on amazon.ca, probably making a profit. I didn’t buy it. Yet.