Let us not forget how XP started out
-Windows 8 isn't insanely popular, and business hate it
-Just like XP! And look where XP now.
Flaw that I might point out:
-XP got really popular since it had a huge lifespan. Vista was delayed, and XP still lived on well after Vista came out, and still today is the second most used OS. Windows 8 probably won't have that advantage.