New
#1
People may find it hard to adapt to the Windows 8 UI, especially if someone wants to purchase a new OEM desktop/laptop, and have been using Windows XP/Windows 7 for the last few years.
I still don't like the concept of the new UI on desktops, it would work fine with a tablet, but the classic Windows desktop Start Menu we have had for the last 20 years will probably never be disliked by users.