Who owns your book future?

The disagreement between Macmillan and Amazon is covered in a number of places. I’m linking to BoingBoing. The spat bothers me on a number of levels. Let’s just pick one: the fact that a person reading electronically can be locked into buying ebooks from a particular seller. I thought capitalism was about maintaining a market and enabling creativity in an environment that rewards it. Silly me. Capitalism is about making money, even when it constrains society/culture and free choice.