The point on apple pushing thinness is often put forward as pure design decision, but I am more and more convinced the manufacturing costs might have at least a

The point on apple pushing thinness is often put forward as pure design decision, but I am more and more convinced the manufacturing costs might have at least an equal part. Battery is the same on every model, and bumping the battery amount would force them to split the line in two models, which would need a separate fabrication line just for the bigger model, or have a cheap one with the same amount of battery, wich would significantly bump the entry model price.