I know quoting Jobs is passe, but this seems relevant: "But in the end, for something this complicated, it's really hard to design products by focus groups. A lot of times, people don't know what they want until you show it to them."
In Henry Ford's (apparently apocryphal) words, “If I had asked people what they wanted, they would have said faster horses.” One is reminded of how much preferences can change when faced with options they couldn't previously imagine, every time one hears of grimly determined "in-control" rush hour commuters.
> We have no evidence that Ford ever said those words.