I am often asked: what is the pay-off for an Executive MBA?
The answer is simple. Should you have no or only basic knowledge in business administration and want to enter management, the skills you acquire during your MBA are extremely valuable to understand how to run a business.
A more specified version of the pay-off question is whether it is worth for lawyers getting an MBA. My answer is the same but you might be more interested in what lawyers say who have made their MBA.
the Association of Corporate Counsel, two lawyers describe their situations and motivations prior and after the MBA in a, in my opinion, interview worth reading.