Right you are Steve, though it's worth noting that I've had multiple instructors who did not have an AACSB accredited degree teaching business courses in my MBA program and elsewhere. I think it's the culmination of the individual's experience, ability to communicate well, education, etc. that makes a good teaching candidate, not whether or not where they earned their business degree conducts business research (the premise for AACSB). Besides, those at the ACBSP and IACBE may disagree with donald, I certainly don't find any of them wholey necassary but more nice to have.
That being said from a pure ROI (return on investment) it's tough to beat the lesser expensive schools, especially for career changers and older professionals who need a quicker return. American Public University, Bellevue University, Amberton University and the like are a tough act to beat.