acer makes great ultrabooks, and has for some time. i'm on my second one now, and its still as useful to me now as when i bought it 14 months ago. i used it for everything. my big laptop is now retired (i installed ubuntu for chits n gigglez) and my desktop is on the ebay chopping bloc
#8 more heat escapes through my head. when i walk outside into the cold after 5 minutes my hands are the same temperature as outside, cold. as are my ears cheeks and nose. but my eyes scalp and neck are still warm, and loosing heat as fast as i can pump blood into them. my ands once cols get hardly any blood/heat. i am certain that #8 is not true for everybody.