The 2nd link indicates a "Full" at $169 on sale for $67 - BS, it is still an OEM version that retails for $100.
These are OEM versions, tied to specific Computer manuf. Reading the comments. they Look like they are just a plain OEM stuck in a specific computer Brand jacket.
Most OEM copies (But Not all) tied to a "brand" may refuse to install on a Computer that the MB is NOT of that brand.
Legally, they are meant to be installed ONLY in that Brand of Computer.
With the OEM version @ newegg, YOU are classed as the Manuf and thus the OEM version is Leagally vailed for what ever computer you build and ONLY becomes tied to the "first" Computer that it is installed on.
Your Choice, Myself I'd bite the Builet and pay the extra.