I call bullshit, since the objective of both are mutually exclusive. Chromebook is great if you live on the internet, have few to no local files, and just use your laptop for browsing & email.
Surface Pros are full laptop replacements. There are some niche uses for it, other than just as laptops. Say I have a peripheral that only Windows can recognize, it makes sense to have something like a Surface Pro, or if one is on a budget, HP Stream or a WinBook. Like I have a Brother label maker, which my PC-BSD setup can't recognize. That's the sort of thing I'd want a Wintel tablet for, provided it has the appropriate USB slots and drivers.
Other than that, non-Windows alternatives are great