The other two-thirds, though, tell a different story. According to those who performed the study, they are seeing similar figures in many different areas of enterprises. Even if many of those systems are downgraded, many are being left as-is. What's likely occurring is that a lot of companies are rolling out Vista, only downgrading to XP in situations where they know it is warranted.
Regardless of how you look at it, this is good for Microsoft. It shows people are willing to upgrade, and it shows that Microsoft made the right choice in allowing XP downgrades to continue unabated.