And by "nobody", you mean "actually a lot of people, just not as many as the bigger model". It's ok to have a model that meets a less common, but still extant, need in the market. If everyone followed Apple's logic on this, people with very small or very large bodies would have to go naked because companies would go "that size doesn't sell as much, we have to kill it" rather than (as actually happens) charging more per unit to make up for the overhead of lower volumes of sales.