In reply to PeterJuggler:
Few reasons really....
Some programs I use are not compatible with it
Every review I have read about Windows 8 indicates it does really work when not on a tablet / touchscreen
The fact you have to implement a load of work-arounds to make it operate in a useful manner is quite telling (e.g. they got it wrong / forgot to include the right functionality)
I went into PC World and had a play and found it very faffy. To be honest I would rather keep XP but I need a new machine with more power and storage space and seems sensible given updates for XP cease next year.