Oh, and to the idiots claiming that this is Microsoft telling the people what they want instead of listening to what they want: you have no idea what you are talking about. You are the ones who want an operating system that requires no learning, no improved and streamlined functionality, and no updates ever. You are the ones being inflexible.
Give it a real, open-minded shot. Learn how to use it instead of going into it thinking it's Windows 7. It really isn't that hard to figure out. If, after learning EVERYTHING, you feel the same way, go back to the old while the rest of the world moves on.
Keep in mind, PC's have been steadily declining in sales; even while XP was still around and with the success of Windows 7. On the gaming front, build-it-yourself PC's are declining as well, because more games are moving to consoles, handhelds, and app formats, thus requiring less of the super-beefy hardware. Corporations are getting people on tablets and other mobile devices, while their "big" computing is on a laptop.
Microsoft is seeing the trend and simply being prepared for it. There's less and less need to spend money separating the desktop from everything else. Apple didn't outgrow Microsoft on the computer front; in fact, it was moving away from computers and focusing on gadgets that catapulted them to the front.
As for XBox One: it hasn't even launched yet, so we have no idea if it's going to be successful. People took a media-features-heavy preview of the system and ran with it as a non-gaming platform. Then MS showed off a bunch of games at the E3... People are just too stupid to give something a chance or wait a few days. They jump off a cliff and join the groupthink in a hurry. Concurrently, consoles are no longer just about gaming anyway; there's enough tech that companies can cram in there to have it serve as more than just gaming. It's a full blown entertainment piece in a $400 box. Don't be fooled by those claiming PS4 is "more gaming" focused; it's not. They are using it to serve the exact same function, competitively, as Microsoft. They just advertised more about the gaming side of things. Even if it were the case that Sony went gaming heavy while MS tried to be a catch-all, I'd spend the $50 more to get everything besides just gaming.
"But I just want my console to game!"
You are in the minority, my friend. Most of the PS3 sales weren't even for the games. People bought it to be a Blu-Ray player that could also game. Families buy these things more than gamers do anymore, so you aren't the voice that drives the market. Get used to it.