Based off what I've read, NON OEM is better than OEM but In Canada, The Non OEM version of WIN 8.1 is cheaper than the OEM version, am I wrong
NON-OEM http://ca.pcpartpicker.com/part/microsoft-os-wn700578
OEM http://ca.pcpartpicker.com/part/microsoft-os-wn700615
NON-OEM http://ca.pcpartpicker.com/part/microsoft-os-wn700578
OEM http://ca.pcpartpicker.com/part/microsoft-os-wn700615