I moved from the very first day I got the upgrade option. It's been a great experience for me so far and everything runs so much better than Windows 7, and I thought Win7 was great.

I'm sorry but I need to correct your statement.... MS Windows 10 is NOT "free." Sure, you don't exchange anything monetarily when you make the decision to upgrade, but what you don't exchange monetarily, you give up in your privacy and your data. And that direct access to your information is MORE valuable to a company like MS or Google (another company which gives away every technology and service, practically, for "free") than collecting $120 from each purchase... And also because they (MS and Google) perpetually mine your personal data the entire time you continue to use said services.

I would also argue that the Windows 10 platform is no longer just an OS, it is now a service. A service that you will never own and one that MS could pull out from under you at any point (if they so chose) or one that would also go away if MS servers ever went offline. Both are implausible, but the potential for a massive data breach is never more than an inevitable possibility... My point is - the cloud, while convenient, is not all it's cracked up to be.