I just paid $70 for a "workbook" that sends you all over the internet to do much of the "research" for the class. The class was six weeks, and had very scant information on the topic. However, you need the workbook in order to take the tests. Same with chemistry. $100 for an online workbook that you need to do the homework.
Some classes still need the texts.
Which is why god invented z library . . .