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This may be a dumb question, but when you get the copy-cat book, it will cover the same topics but will have different end of chapter examples and questions which are often used for assignment purposes. How does a student navigate that? I suppose they could ask a fellow student that did fork over the dough for the actual textbook. Anyways, it's a racket. I think in 50 years people will look back at how walled off our education system was in astonishment.