UND offers in-state tuition for all distance students. This means that their AACSB-accredited MBA program's total cost is just over $12,000, a fantastic value.
Just like many other AACSB MBAs, they do require that prerequisite courses be taken if you don't have a business background, but UND will let you use "challenge exams" to test out of those classes, keeping your degree costs down, and possibly saving some time, too.
A highly accredited MBA from a low-cost, well-established state school, and definitely worth a look.