I'm coming round to them
I'm torn. The latest Surfaces are really very nice. On the other hand I hate the idea of not having enough horsepower to do what I want whenever I want to do it. In the old old days you could buy a portable SPARC lappy. These days the closest thing is this: http://www.eurocom.com/ec/configure%281,234,0%29ec but it looks like it could grill meat...including my legs.
A Surface Pro form factor with 32Gb RAM, 1 Tb disk and enough cpu to run 2 or 3 VMs at once and I'll hand you my wallet.