There is no compelling reason to go back. None.
It always amazes me that people would rather stay stuck in the past, rather than move on to the future.
They see Win 7 as a step back, when really, besides maybe some little UI things, the OS underneath is quite solid. A far cry better than XP.
XP is dead, you can cry and moan and stomp yoru feet all day long,,,, even MS want the thing to go away as an old sock you have worn for 10 years.
XP is to 7 as 98 was to XP.