I got my external monitor set to 1440x1080 to get them 4:3 resolution going, black bars and all- it's how i prefer the resolution to be for my computer, monitor, and all my games xD im a weirdo
Not weird at all lol (that would only enhance the effect imo)
I actually pondered the idea of including a 4:3 option at one brief point but then decided that users can probably do that kind of stuff on their own (case in point, you) without the game itself screwing with their set up or adding artificial black bars to constrain the carefully adjusted field of view settings.