I've never owned suspenders and don't want them. It wouldn't like the pressure they would put by pulling down on my shoulders. I don't think I've ever even known anyone who wears them, and I never see them on anyone around here, unless they have a kind that goes under their clothing.
Most pants are made with belt loops, so to me, it just wouldn't look right to not have a belt on. It would look like something was missing - but I've always heard that a belt and suspenders should never be worn at the same time.