I didn't like the speed at which it run in my computer -everything was slowed down- and I didn't like the huge amount of disk space it took compare to XP. Why would I update, when everything runs faster in XP, never crashes or I ever had a security issue in all these years, and I have a lot more space for other applications in the HD?... and I get to spend the $100 to $150 in more needed stuff.
As I said above, since I don't play games, and DCS is the only application so far that doesn't run in XP, I don't see a reason to change. Everything I need runs in XP; and faster.