Also see Microsoft Office 2016 review: It's all about collaboration (PCWorld)
"Having a new desktop version of the software means that consumers who pick up a new PC this holiday season can get Microsoft’s latest and greatest desktop software. For consumers, Microsoft is offering Windows 10 as a free update and is eager to get as many PCs running the new software as possible. Office 2016 is a free update to Windows 365 subscribers and also goes on sale Tuesday to consumers and businesses.Microsoft Releases Office 2016, a New Version for Windows Desktops | Re/code
And it is those businesses that are perhaps most critical to Microsoft’s bottom line. The new Office gives businesses that want to upgrade their computers over the coming months and years the opportunity to upgrade both the operating system and Office at the same time.
“They don’t want to touch their desktops twice,” Capossela said."