Speaking of weird, having made a DIY laptop i noticed plenty of weird design decisions in all of the consumer models.
Mine got:
-Power in *and out*, since why carry a huge battery around if it's not accessible, i.e. to run a soldering iron?
-HDMI *input* and USB *output* options, since a laptop is a screen+keyboard terminal useful to attach other computers to.
-Is mostly battery by weight, since what's the point if it can't run for a day?
-Got a removable core, since upgrades will happen.