NYT article discusses the huge setup costs involved in setting up a home theater system. Connecting all the components, placing the speakers, optimizing everything is a pretty arduous process.
This is a case of combinatorial complexity - so many components and possibilities leads to a hugely complex situation for people to deal with. To their credit, the companies that are the platform coordinators are doing their best, via calibration routines and setup discs. A good example of the kinds of problems platforms face - very different from the ones that individual goods and services do. This is why platform strategies require a whole different set of strategic insights.