Every version of a particular song offered for sale is identical, so it is easy for people to figure out that price is not a significant differentiator. Most pr

Every version of a particular song offered for sale is identical, so it is easy for people to figure out that price is not a significant differentiator. Most products aren't like that. It is relatively hard to know the quality of an Accounting package before you buy it and use it extensively, for example. In that sort of context, price does often send a signal about what market niche you are aiming for.