My father, Carlton, was and is an avid growth stock investor, and he began writing and publishing the Cabot Market Letter back in 1970 because he wanted to share his ideas with other investors. I grew up with the business, so l know a lot about both investing and publishing, but at heart I’m more of a publisher, so I hire investment experts to deliver the nuts-and-bolts content of our various investment advisories. Now, a major truth about the publishing business, whether it’s newspapers, magazines, or newsletters, is that the profits are in the renewals, not the first-time customers....
