I could get behind using old textbooks and putting them on eReaders, though. At least in a targeted manner. My math department in college kept a bookshelf ful

I could get behind using old textbooks and putting them on eReaders, though. At least in a targeted manner. My math department in college kept a bookshelf full of copies of texts they had used back through the early 20th century. It's kind of amazing to see how much more clearly-written calculus textbooks were in the 1940s. And the ones of that vintage that are still in print can be had for cheap - the sticker says I bought my copy of "Vector and Tensor Analysis" by Borisenko and Tarapov (part of the Dover Books on Mathematics series) for $7. On the other hand, a biology book that old is going to be missing a whole lot of key stuff; probably even knowledge of the Krebs cycle was too new to be reliably appearing in school texts. Perhaps instead educators could band together to produce open source textbooks.