In Derby v. Derby, 8 Va. App. 19, 28, 378 S.E.2d 74, 78-79 (1989), the Court set aside as unconscionable a contract which awarded the wife virtually all the husband's property, noting that "gross disparity in the value exchanged is a significant factor in determining whether oppressive influences affected the agreement to the extent that the process was unfair and the terms of the resultant agreement unconscionable." Derby, 8 Va. App. at 28, 378 S.E.2d at 79.