The average annual cost for out-of-state students is just over $50,000.00.
And sadly, Auburn is the only school that does nothing to alleviate the tuition cost for out of state students. At Bama, if you score a 27+ on your ACT, and you live out of state, they start reducing the cost of out of state tuition. At Arkansas, if you live in a state that borders Arkansas, and you maintain a 3.40 GPA or higher, they will charge you in-state tuition. Ole Miss does something similar to what Bama does, with regards to the ACT score.
The other thing to remember with the rising cost of tuition, it that it's also easier to get grants/scholarships than when we all went to Auburn. Yes, it's expensive, I won't deny that, but there are avenues to make the cost lower.
Edit to add: Auburn is also the only school that does nothing to actively recruit in the Missouri market. Bama rented out Busch Stadium summer 2018 to have any high school senior come visit. Ole Miss and Miss State do all kinds of shit around here. It's very frustrating to talk to parents we are friends with, and hear their kid is going to Bama "The tuition Bama offered is cheaper, even with out of state tuition, than it would be to go to Illinois."