David Chartier responds to my mild defense of in-app purchases.

There are plenty of examples of in-app purchases used in a variety of reasonable ways to provide a pleasant, tiered experience for consumers and a reasonable revenue model for developers. I applaud them, and I would really like to see most app revenues get some breathing room. But a large and seemingly growing portion of in-app purchase experiences are not providing a product or service.

Very true. In addition to mildness, my defense is not a blanket one.