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<p>I have grumbled that exact question under my breath numerous time. D had to purchase the 'NEW and IMPROVED" calculus book in HS. The NEW and IMPROVED version just reordered some chapters! Similar situations for other math texts in DS case. Yes, the f(x) has changed so dramatically that we need to charge you $150 for the NEW explanation. Again, this is a case of price fixing and coercion which should be tried under RICO!</p>
<p>The latest OMG version of this story is the shrink wrapped ‘book’ which is basically X number of photo copied pages with hole punches. DD has had to purchase several of these to the tune of $150+ each! Oh, yeah, these are the books written by the professor…who ‘improves’ on his work regularly.</p>