Is it possible some corporations just have MBA requirements for advancement? Then it doesn't matter where you got the degree from just that you have it. I know this is the case in education, and has lead to the proliferation of online education grad degrees. Since you just need the piece of paper, most careerists optimize for the easiest online "mail order" type degree possible. They don't, however, optimize for cheapest, since tax payers bankroll most of these cheesy degrees through tuition reimbursement.