Demolish the textbook market as soon as possible(.)
Why would someone actively urge demolishing an industry devoted to improving knowledge? Surely there are other industries more worthy of immediate replacement. (Yeah, I’m looking at you, fossil fuels!)
Traditionally, people whinge about the cost of textbooks. But I don’t think that alone is the issue, considering that many of them will happily spend much more on other things. The issue isn’t the cost, it’s their value.
I think one of the problems with textbooks is that, by definition, they are compilations of established knowledge. We have a fairly long established idea that over time, established knowledge becomes public domain. This is particularly true of scientific ideas. Indeed, some may argue that this is the entire point of science. So people really wonder why they should have a compilation of stuff where the core materials are often quite literally decades old.
This problem for textbooks is going to get worse as more old information gets put online. For the kind of science found in introductory textbooks, sources like the much reviled Wikipedia are decent starting points.
Textbooks are going to have to reinvent themselves. They’re going to have to stop being mini-encyclopedias on a topic, and offer something else. I’m not sure what it’ll be. Maybe the future lies with textbooks that offer personal perspective, opinion, a plan, or a point of view.