Keep in mind, I am someone who decided very early that I would attend my state school over almost any other school in the country.
I believe that Emory will open very few additional doors for you.
From what I have heard, I do think that it will help you if you want to go into academics. How much, I cannot say. You will still be able to go into academics from a state school, but it will be more difficult. How likely are you to go into academics? Likely enough for it to be worth $60,000? Only you can answer that question.
In regards to getting into a competitive specialty, it is much more important to go where you will be happy and perform well. If you want to go into a competitive specialty you will have to perform well regardless of whether you go to Emory or the state school. You are better off at a state school, if you perform well in your classes, in the wards and on Step 1, than you are at Emory if you don't.
I have talked to a number of doctors that went to Northwestern medical school and Wash U, and even one from Harvard, that told me to go to my state school. In the end, they did not feel it was worth the money and that they wound up at the same place as everyone else. It can help with residencies, but not as much as you might think.
It was also very interesting to see my friends in residency (I graduated with a number of pre-meds in 1995 who went on to medical school). For example, one of my friends who went to a state school did his emergency medicine residency with someone who graduated from Wash U medical school and someone who graduated from Kirksville's DO school. They all wound up in the same residency with the same opportunities.
I'm not saying there are not advantages to going to higher ranked schools, but I don't think they are very great. To me, they were not worth the tuition, and I knew I would be very happy (and thus hopefully perform better) at my state school. But I have a very limited interest, if any, in academics and research.
If I were you I would look at which school you will be happiest at first, then look at which one offers you any better opportunities, and finally if it is worth the money to attend a school for those reasons.