Apple is in a somewhat strange position. I'd argue that they are competing with Asus/Dell/etc. as a company, but their products aren't, in that you first decide

Apple is in a somewhat strange position. I'd argue that they are competing with Asus/Dell/etc. as a company, but their products aren't, in that you first decide between Mac/PC and only then decide on a model. Obviously not true in all cases (i. e. I love Apple to death but had to resort to a very custom desktop for some ML work). But its right often enough to make additional models a losing proposition for Apple: they'd just be competing with themselves.