What does Windows have to do with it? Couldn't you achieve "Chromebook-level-functionality" with a Linux model (since you'd be living out of the browser)?
I was mostly just trying to do an apples-to-apples comparison based on price. I couldn't find any Acer linux laptops that ship with linux in a quick search.
Functionality-wise, yes there's no reason you couldn't get linux on par with Chrome from a leanness standpoint by just stripping out services and booting into the browser.