Even if my hardware was capable, I don't trust the software side of things until the guinea pigs/early adopters have spent a year shaking things out.
I never do an OS upgrade as soon as it becomes available; it has to be scheduled during a slow period when I can risk losing my systems for a while to recover from backups.
I expect Microsoft upgrades to go as smoothly as any other train wreck. They always munge some piece of software that I rely on. As my box is used for my daily bread work type stuff, that isn't a step I take lightly. Certainly not on the word of some marketing shills.
Biting the hand that feeds IT
