I don't think gamers will be ditching desktop for laptops anytime soon (for example: better cooling allows for more performance; plus, multiple graphic cards, a

I don't think gamers will be ditching desktop for laptops anytime soon (for example: better cooling allows for more performance; plus, multiple graphic cards, and, as I said previously, modularity). There still exists a difference in the higher end, and, while this may make some workers (be it software developers or just people who work with office software) prefer a laptop, many still won't because of the price. Yes, for Facebook and such you are fine with a tablet or a shitty laptop (although in my experience, the cheapest desktop is cheaper than the cheapest laptop; it may just be due to geographic location), and the desktop may lose the lower end; but, when you have higher needs, laptops start to get pricier and less performant, thus becomming less of an adequate option. About the ratio of computing devices, it's not only because desktop sell less; there are many more devices being used now than 5 years ago, and most of the new ones are tablets and smartphones. The absolute decline of the desktop is less marked.