Logically, book vendors could impose similar restrictions with similar language and achieve the same result viz. circumvent the first sale doctrine.<p>There's a question: would anyone buy such a book? If you were offered identical books, one you could resell and one you couldn't but it was half the price - which would you buy?<p>I don't know the legal history of the first sale doctrine, but I assume it's mostly based on public policy, and to support things that people were already doing: reselling, lending etc. An interesting data point is that software in the form of video games is regularly resold and lent.<p>IIRC, a distinguishing feature of the autodesk software in this case is that it is very high-end commercial software, and thus not a consumer product. Buyers and sellers in business transactions are generally assumed by the courts to know what they're doing, and so the courts tend not to intervene with whatever bargain they've struck. That is: this is likely inapplicable to consumer software like video games.