Because that's what you're willing to spend, have no desire to upgrade to sli in the future as the 1060 can't do that, have alrdy passed on anything AMD, and are likely thinking of an itx or matx 1080p budget OC gaming build? lol Not meaning to be blunt or impolite, but you're kind of comparing apples to apples, they're both fine cards, I guess I'd probably go with MSI's version though really you're better off getting whichever is priced lower.