Chromebook as MacBook Replacement?

I am contemplating getting a Mac Mini for my desk when Apple updates the hardware next and a Samsung Series 5 550 Chromebook w/ the iPad for mobile travel purposes. As much as I want another MacBook, I just can’t justify it when all I did was run Chrome on the thing. Of course, $449 for a Chromebook is a bit ridiculous, but I want something ultra without the $800 price tag.