In this era of Amazon and Google, could we finally drastically lower the cost of textbooks?

Check out the chart above. It's from here (AEI) via here (The Atlantic), and basically it captures this idea: since 1978, the cost for college textbooks has exceeded the rising rate for medical services, new home prices, and even inflation. While the number has declined -- in early 2013, students said they paid about $655 annually on books and supplies,…