What is the point of the Windows 8.1 Start button regression?

In the recently exposed Windows 8.1 We were pleasantly surprised to see the return of the Start button, which was confirmed by Alien Media verge Tom Warren after consulting Microsoft. According to the message that Tom got back to the beginning of the return button in fact, after the click will jump directly to the start screen, then such a return what is the point? Does the consumer really need this start button?

The start button is being searched, shortcuts, the Quick Start entry of the application list, and apparently Microsoft is not willing to give up the Windows 8 system in the Start screen of this service, but because of too much spit and market pressure to cater to the market a flexible, but this does not mean that the beginning of the button in the true sense of regression, All the functions of the Start button are still dependent on the start screen and related charms.

So what's the difference between starting a return button and exhaling it with the win button on the keyboard?