I see your point, but still, battery life/silence/portability doesn't seem to be worth the flexibility of having full osx esp when compared to an Air
The psychological effect of this is surprisingly powerful.
So it's more like a cook who prefers an oven with a temperature knob over the flexibility and control of lighting and tending his own fire.*
* I say this a someone who definitely is glad not to have to kindle a fire to cook even the most elaborate meals, but who loves a good wood-fired pizza.