Having given up on the ROI, security and stability issues, Microsoft resorts to paying big customers to use Windows. Some cynical people would call that outright bribery, especially as it seems used mostly with governments. I certainly would never say a thing like that. On the other hand I was already aware that Redmond is practically giving away licenses to big names whom they suspect of being about to switch to Linux, as they offered just that sort of deep discount to Tristan Louis when he started announcing his site’s switch to Red Hat.