Two pictures speak 1000 words here. Consider share of page-views according to StatCounter for the United Kingdom from 2008 to 2013. First there was growth for GNU/Linux and then stagnation for years as “7” seemed good enough for many. Along comes “8” and both “7” sees a drop to a plateau and GNU/Linux sees a spike. People are choosing and enjoying that they finally have a visible choice. That’s the result of the ubiquity of small cheap computers running */Linux and the horror that is “8” for people who love the desktop.
So, M$ is its own worst enemy. What GNU/Linux lacks in salesmen, M$ makes up for with its salesmen serving as software-designers. Now, GNU/Linux is finding its way onto retail shelves and onto UK desks. According to these data, about 10% as many choose GNU/Linux as choose “8” but about 15% as many as choose “7” are choosing GNU/Linux. The future is a lot higher than ~1% GNU/Linux because those choosing GNU/Linux are just the early adopters and they have friends and associates who will see, at last, that GNU/Linux works for them. I expect to live long enough to see ~30% going with GNU/Linux. There’s no telling where the trend will end once it reaches about 10%.