ED is a binding agreement that obligates you to attend unless there are hugely extenuating financial circumstances that make it impossible for you to afford. $5k/year in debt is nothing in the large scheme of things. You’ll possibly also change your mind on majors, grad school, and what you want to do after college (perhaps a few times!) during your college career, so you need to factor in what university you think will make you grow more and challenge you regardless of the route you end up taking. Now, if you were making this decision up front and said your parents would be willing to pay a lot more for grad school/house down payment/whatever if you go to ASU, that would certainly be something to consider, but you effectively already made that decision by applying ED to Duke. Don’t back out of your commitment – Duke is a fantastic school and you’ll have a great time while growing as a student and a person, and will have huge opportunities ahead. Good luck.