 The existence of the procedural unconscionability without substantive unconscionability may be sufficient to set aside a contract, but the latter, by itself, may not.As with issues of consideration, the court's role is not to determine whether someone has made a good or bad bargain, but merely whether that party had the opportunity to properly judge what was best in their own interests.The leading case for unconscionability in the United States is "Williams v. Walker-Thomas Furniture Co.", in which the defendant, a retail furniture store, sold multiple items to a customer from 1957 to 1962.