if u already bought win8 upgrade u can transfer the license still.tell him to buy OEM its well worth the asking price.
imho win8 is the only OS from MS which i'm more than happy to pay over £100 for.so £109 for OEM which is basically RETAIL to me is excellent buy. actually i will be buying Win8 Pro 64bit OEM when my next PC upgrade is due,that's for sure.
previous OS win7 64bit cracked version on main PC & legit win7 32bit on netbook.