Editor's Notes & Price Research
Get a Free upgrade to Windows 10 [upgrade info]. - brisar
Our research indicates that Microsoft Windows 7 Home Premium OEM SP1 (64-Bit) is $17 less (19% savings) than the next best price from a reputable merchant with prices starting from $90. - brisar
Windows lifecycle fact sheet
Gizmodo - Microsoft wants to eliminate the Desktop/Laptop with Windows 10 so you'll connect your phone to other devices.
Microsoft Just Nonchalantly Showed Us the Single-Device UI of the Future
No, there will NOT be a subscription fee for Windows 10 after the 1st year.
Gizmodo - Yes, Windows 10 Is Coming This Summer--But Only For PCs