Actually, there are lots of good reasons for the very high price of textbooks. I'm not in the industry, but until recently a very close friend of mine was, and she would complain about the many issues. This may indeed be the edge of the wedge, but what will happen will not be that top quality textbooks become available for next to nothing, but that top-quality textbooks become unavailable at any price, and people complain a lot about how they don't make things the way they used to. Like software, the rise of the EULA and the death of lifetime free updates. Or the loss of top quality tech support from hardware companies.

Now, that said, some of the things that support high prices for textbooks are unnecessary. Another thing that will change is that the definition of top-quality will change (as it did with USDA Prime beef).