The market is there, people
A nice summary of the arguments against text books notes:
$50 is the low end, $200 is more typical. A textbook author in Toronto made enough money from his calculus textbook to afford a $20 million house.
So, if you do the math on the number of students in the US times the number of classes they take times the number of textbooks they use each year, then why isn’t there a market for good educational games?
