They are getting fewer. Samsung reportedly leaving the UK market (market share dropped from 8% to 1%, most likely because they don't even try to sell them), Sony laptops closing down end of 2014.
Where I work, every Windows only user with a bit of influence uses Windows installed on an MBA. Haven't seen anyone with Windows 8 yet.
Very true. And the reason why I am getting a Mac for school next year. There have been no ultrabook refreshes lately and both Samsung and Sony anre getting out of the market. That just leaves people choosing between HP, Acer, and lenovo machines ranging from 6 to 12 months old.