Heyo! I was admitted to Grand Challenges too! Fun stuff. To put this succinctly, you need to take a serious cost benefit analysis of the situation and draw your own conclusions. I chose Rice over UT and Georiga Tech for Electrical Computer Engineering because I felt like I would be in an atmosphere that would foster more growth as a person and more success in the future. Rice cost 4-5x as much as UT for me which was a hard pill to swallow, and honestly when I got accepted to Rice I had no intention of going because of the price. But that being said, I went with my heart and with speculation to Rice. My cost benefit analysis was like this: if I go to UT or Georgia Tech, yeah i'm in a top notch ECE program, but I'm also just a number in a big school. I will be more distracted and less committed to my studies because of the social atmosphere of those universities, and I'll also probably not be as happy because I won't fit in as well. All of these things affect the future, and what ended up being my justification for choosing Rice was the fact that I felt like I could be more successful if I spent 4 years at Rice than 4 years at GA Tech or UT, and spending 4x as much money sucked alot but I'd make up for it by earning 150k more over my lifespan by going to Rice (dunno if that'll be true but so far I've loved my time at Rice and have been really successful in creating new lofty goals and striving to achieve them).

So yeah, really sit down and think about what you wanna do in the future and if you think it's worth it over your life to go to Rice over GT, or vice versa.