So it’s roughly 80K additional? I don’t think the extra 2k/year makes it worth it to lock yourself into that school. Why not apply to all three and see what happens. You don’t know what Cornell will offer you by the way of FA.
Additionally, while I dont’ suggest taking on lots of debt, I do think that some schools offer higher starting salaries. You can often check starting salaries for each. These can be considerably different for the same major. So over time, might be worth going one way or the other. Higher starting salaries out of the gate are like saving in your 401K in your 20’s ( very positive).
I’d also look closely at which program you like best. Decide which is best for you (devoid of prestige), then add in costs and go from there. Does one have a better internship program or approach?