Question about Surface and NFC

I've heard two suggestions. One is that as a budget device the Surface doesn't include NFC. The other is that the Magnesium body interfered with it's function. Which answer is likely to be true? And if it is the latter, is there a workaround they could have used? Aside from putting it into the cover, or some other cheat like that. I wouldn't mind a cutout on the side if that would allow reception.