Suit, Shoot, Riot

Obviously, not every part of the world views a three-piece suit as the standard of formal wear, but a good part does. Refinery29 referenced the AskMen.com poll and posed good questions like what do over half of the world's men wear to weddings, funerals and job interviews?

Every man does not need a closet full of suits for every occasion, a la Rusty Ryan in Ocean's 11 who even had a picking-up-my-friend-from-jail suit, but one sturdy suit seems necessary. With many retail and wholesale suppliers offering corporate wear, why are men avoiding suits?