So, every time I go out on ebay or places like half.com, overstock, etc. & look for my next semester books, I keep seeing "test banks" for sell. What's the deal? Surely these people don't actually have the test banks from the publisher, do they? (It seems to me more likely that its the questions from the cd that comes with the book.) And wouldn't most consider purchasing them unethical? I mean, I guess if you KNEW your instructor didn't use the test bank, I could see it being a good study guide, but I don't think most instructors go into much detail regarding where their test questions come from. Thoughts?