I've got one of the 5.11 Casual Belts with a stiffener & I think it was only $40-$50. I wear it when carrying my heaviest pistol, but the stiffener makes it like trying to wrap a board around your waist.

You can hold it with the inside facing up, about 18" from the buckle & it lays out flat. No way is it going to twist or sag!