The author seems to miss the obvious point of why people don't "upgrade" to Windows 7 -- vastly increased hardware requirements. Many of the XP installations r

The author seems to miss the obvious point of why people don't "upgrade" to Windows 7 -- vastly increased hardware requirements. Many of the XP installations running today are on hardware that is either barely sufficient to run Windows 7, providing a degraded experience, or completely incapable of running it. Therefore, a Windows 7 upgrade in most of these cases means a hardware upgrade that it appears those folks have determined isn't worth the cost.