Desktops themselves are increasingly becoming 'irrelevant' for people who aren't specialists or using them for office-productivity tasks.

Judging from what I see from my family and people I meet, many homes no longer have any kind of desktop or laptop computers, and rely exclusively on mobile devices of various types.

The era of the 'home computer' will probably turn out to be a "brief" window between the early 80s and this decade. Some people who need specific functionality might have a laptop. But even there, tablets or other restricted mobile-type devices are making inroads.