I just tested Archeage open beta only to find out the game has NO invert mouse option (Y-axis). It is the first (3D character control/first person) game I have ever encountered not to include that option. Needless to say my beta test lasted somewhere around 2 minutes.
I have always (25+ years) played with inverted mouse and can't play without it.
What about you? Invert or non-invert?