While I have no direct insight into either of those programs, I am hoping my input can be of some use to you.
A $31,000 difference is a colossal amount of money, and unless money is absolutely no object to you, it seems like there really isn't a choice to make: Attend NAU. The licensure rate of both programs on the first attempt looks to be >97% (CU's website uses bar graphs, interestingly enough, perhaps to avoid posting the actual number), which is a testament to how well both of the programs prepare their students.
Depending on where you live, that kind of money can give you almost 3 years of free apartment rent, be close to a good down payment on a home, or almost give you two 2017 Ford Focuses. It's also important to remember that it's only $31,000 at first; via loans, this amount will likely grow to an even larger number. Again, this is just one person's opinion that comes from someone who truly does not know about either of these programs. While both appear to be surefire launchpads into the PT profession based on previous classes' licensure rates, one does it for $31,000 less than the other.
One additional note: One of the most common regrets from college graduates is how they wish they made wiser financial decisions when they were students (i.e. less loans, attending the cheaper school, going to community college first, etc.). To reiterate: Unless money does not matter to you, NAU seems like the only choice.
