Also their share of the laptop market, contrary to what the in-placement ads in TV shows and movies where everyone has a Mac laptop would have you believe, is f

Also their share of the laptop market, contrary to what the in-placement ads in TV shows and movies where everyone has a Mac laptop would have you believe, is far behind their competitors (HP, Dell, Lenovo, etc.) who collectively also run Windows, which is far ahead of OSX in terms of adoption. So both in the OS space and in the HW space they have a niche market share. So, the question isn't whether it makes sense to continue the product lines, but whether their decisions will increase or hurt their market share and margins. I have a hard time believing they stopped caring about laptop sales. Those ads cost money, as does the R&D and all the rest of it.