Graphics matter, of course, but the point is that it isn't the number one motivator for some. However, this is [H] and the audience *should* expect new games to push the limits. Now that's another argument.
Gearbox has consolized the PC version to hell, like every game they've made after a certain HL1 expansion. Mouse input is f'd up. Switch to 4:3 mode. Problem solved. Hold E to pick up shit even though you have over 100 keys on the keyboard and a load of buttons on your mouse.