Originally Posted by RHWright
I was going to cite automobiles/gas as an example, but I think the case of someone like Sony is somewhat more apropos. A Sony CD player doesn't just play Sony music. It plays just about any CD from any label. (Never used a Sony ereader, so I don't know how much they carry that model into that arena.)
Instead they seem to be using the razor blade model. Sell them a razor cheap then charge $$ for the special blades needed to fit it.
Sony did that with the memory stick.