That's really not that bad. Since it's only 3 years, total tuition will be $135,000, which is pretty middle of the pack as far as IS tuitions go. As an AZ resident, it looks like there are only 5 schools it would be cheaper for you to attend out of state. I actually think that makes the cost pretty good, especially considering that prior to U of A, the only option for staying in state was attending Midwestern, which is literally the most expensive vet school.
ETA: I also don't think it's a gamble necessarily. My understanding - and someone please correct me if I'm wrong - is that, with a letter of reasonable assurance, even if they ultimately don't get full accreditation, the students attending at the time are treated as if they did. I absolutely would not attend if they don't get that letter though.