I wasn't trying to make a point about price (e-mails are practically free). The book could cost half a penny and my comment would still stand. People just view

I wasn't trying to make a point about price (e-mails are practically free). The book could cost half a penny and my comment would still stand. People just view items that cost something differently than genuinely free items, and not in a rational, economic way. For example, see: https://www.npr.org/sections/money/2012/07/13/156737801/the-cost-of-free-doughnuts-70-years-of-regret https://www.npr.org/sections/money/2012/07/13/156737801/the-...