I suspect most people just don't care about 120Hz. I have a personal MacBook Air (60Hz) and a work MacBook Pro (120Hz) and I simply don't notice any difference.

I suspect most people just don't care about 120Hz. I have a personal MacBook Air (60Hz) and a work MacBook Pro (120Hz) and I simply don't notice any difference. Perhaps I would notice if I specifically looked out for it, but what's the point in that?