Want to understand what's going on here psychologically?

To some people, whenever anyone is making a profit, however small ... some people believe that someone, somewhere, has to be getting the raw end of the deal.

Note: I'm not saying putting Amazon links on your blog means you can be still be 100% objective (you can't), but rather pointing out a deep-seated belief that I have noticed among some, especially those who've found a way to make a living on GPL'd code, for example, and think iPads should be free.

I didn't say anything was wrong with this, or that anyone was hurt. I simply answered the parent's question.

It's a stretch, but you could argue that prices are slightly higher because Amazon has to pay the affiliates.