I was looking through one at W-Mart the other day, didn't want to buy it, just wanted to see what was in it. Hubby saw me looking and wanted to get it for me. I'm a cheapskate too, and said I didn't want it, I can get inspiration/tutorials free online. He insisted until he saw the $10 price...that convinced him I was right
I would say $1 is more like it, especially since the proceeds are going for a good cause.