Scholarship Appeal

I'm a high school senior who got admitted to Binghamton from out-of-state and I'm currently deciding between Binghamton and another very appealing school. I received the Presidential Scholarship ($15k/yr) when I was accepted, making Binghamton cheaper than the other school I am considering. However, the other school I am considering has a stronger program for the career I want to pursue (law) and I'm having difficulty deciding between the two schools. I'm wondering if its possible for me to appeal for more merit aid to make the decision easier for me. I want to reiterate that I'm extremely grateful for the scholarship I've already received.