If you work for people who promote MBA's then it could help get you promoted. Other than that I see little value. I'm a pessimist. How much will the MBA cost a

If you work for people who promote MBA's then it could help get you promoted. Other than that I see little value. I'm a pessimist. How much will the MBA cost and how much extra money would your promotion bring in? Need the inputs to answer "is it worth it?"